├── .gitignore ├── CHANGELOG.md ├── LICENSE.txt ├── README.md ├── SavingThrow.py └── TODO.md /.gitignore: -------------------------------------------------------------------------------- 1 | *.pyc -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | # SavingThrow Change Log 2 | 3 | All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/). 4 | 5 | ## [Unreleased][unreleased] 6 | 7 | ### Fixed 8 | - Directories with trailing slashes blew up when trying to quarantine. 9 | - Fixed trying to `shutil.move` multiple folders with the same name to the quarantine directory by appending a counter variable to the end and trying again. It gives up after 10 failures. 10 | 11 | ## [1.1.0] - 2015-09-18 - Mind Flayer 12 | ### Added 13 | - `TestedFile` now adds a `FilenameRegex` and `Path` element to its allowed types of subelements. 14 | - Specify as many `Path` elements to folders as you want. 15 | - You may specify as many `FilenameRegex` elements to use to determine whether any of the files contained in the `Path`s match. A file being considered for being adware must only match _one_ of `FilenameRegex` (Logical OR). 16 | - You may now specify as many `Regex` elements of a `TestedFile` as you want. A file being considered for being adware must only match _one_ of `Regex` (Logical OR). 17 | - If you have specified a `Regex`, then the contents will also be tested before adding to the candidate list. 18 | - You may now specify as many `File` elements in a `TestedFile` as you want also. 19 | - Malformed XML will not stop SavingThrow from processing. 20 | - Added `SavingThrowVersion` tag to top-level of ADFs. If the SavingThrow version is less than the one requested by the ADF, it will log a warning, and try to continue. 21 | 22 | ## [1.0.4] - 2015-04-30 - Dire Beetle 23 | ### Changed 24 | - Formatted change log to adhere to [standards](http://keepachangelog.com/). 25 | - Removes positional arguments meant to absorb Casper policy script variables $1-$3. 26 | - Took SavingThrow out of beta (v.1.x.x) 27 | 28 | ### Fixed 29 | - When run as a Casper policy script, does not handle optional arguments correctly, resulting in no action. 30 | 31 | ## [0.0.3] - 2015-04-14 - Gelatinous Cube 32 | ### Added 33 | 34 | - Initial release. 35 | 36 | ### Changed (from prerelease and gist versions) 37 | - Loads ADF (adware definition files) files from the internets. 38 | - Caches ADF's locally in case network is down. 39 | - New XML ADF format. 40 | - Unloads launchd jobs prior to deletion. 41 | - Kills processes. 42 | - More command line options: 43 | - `-s` for regular old reporting to stdout (not in extension attribute format) 44 | - `-r` is still remove 45 | - `-q` quarantine files into a zip in your `/Library/Application Support/SavingThrow/Quarantine` folder 46 | 47 | [unreleased]: https://github.com/sheagcraig/SavingThrow/compare/1.1.0...HEAD 48 | [1.1.0]: https://github.com/sheagcraig/SavingThrow/compare/1.0.4...1.1.0 49 | [1.0.4]: https://github.com/sheagcraig/SavingThrow/compare/0.0.3...1.0.4 50 | [0.0.3]: https://github.com/sheagcraig/SavingThrow/compare/3ef098d10e6155c5443f5fc05296f6be1d3adaa6...4892846c4313be8ff07edfaf853b1960c22ecdbf 51 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | SavingThrow 2 | =========== 3 | SavingThrow is a flexible script allowing mac system administrators to curate lists of known files (*App Definition Files*) installed by undesired software, to check for on managed computers, and optionally, remove or quarantine them. The separately run [SavingThrows organization](https://github.com/SavingThrows/AdwareDefinitionFiles) collects vetted ADF files for use, akin to the AutoPkg recipe repos to help minimize the expertise required by any one adminstrator in dealing with these pieces of software. SavingThrow initially was written to look for common "Adware" as described by [Kbase Article](https://support.apple.com/en-us/ht203987), but it is not restricted to software that is "Adware". Rather, it provides a system for flexibly managing lists of software found undesirable on client machines in an enterprise environment, and making them go away. 4 | 5 | SavingThrow pulls its ADF's from user-provided URL's, and caches them locally, 6 | updating the cache as necessary. 7 | 8 | SavingThrow can report back found files as a Casper extension attribute (*no args*), or straight to stdout (`-s/--stdout`), and always outputs its findings to the system log. 9 | 10 | It can delete files (`-r/--remove`), or move them to a quarantine folder at `/Library/Application Support/SavingThrow//` (`-q/--quarantine`). Further, it will unload and disable LaunchD jobs prior to removal or quarantine to hopefully avoid requiring a reboot. 11 | 12 | Please note: the use of the word "Adware" throughout this documentation and 13 | the SavingThrow code results primarily from the historical development of this 14 | tool around Apple's [Kbase Article](https://support.apple.com/en-us/ht203987) 15 | rather than a comment on the software potentially targeted and removed by 16 | SavingThrow. The continued usage of the word Adware, primarily in code, has 17 | to do with supporting existing users and not making breaking-changes in 18 | the code. 19 | 20 | Configuration 21 | ============= 22 | SavingThrow requires admin privileges to run. Take note, it has the potential 23 | to delete a lot of files! It is the responsibility of each administrator to 24 | review and curate the ADF's configured for their institution. 25 | 26 | To configure a list of available ADF sources, edit the `NEFARIOUS_FILE_SOURCES` list at the top of SavingThrow.py to include each complete URL (including protocol), which you would like SavingThrow to use. Entries must be single or double quoted, and separated by commas (it's a python list). 27 | 28 | For example, say you wanted to add definitions for two extra ADF sources: 29 | ``` 30 | # Add any URL's to nefarious file lists here: 31 | NEFARIOUS_FILE_SOURCES = ["https://ourserver.org/SavingThrow/CouponNagger.adf", 32 | "https://ourserver.org/SavingThrow/ClickBait.adf"] 33 | ``` 34 | 35 | SavingThrow includes the files described in Apple's 36 | [Kbase Article](https://support.apple.com/en-us/ht203987) on removing common 37 | adware as a sane, trusted default. 38 | 39 | If interest exists for a configuration plist, that would be simple to 40 | implement, although it would make use as an extension attribute more tricky 41 | (because it would require the config file be in place prior to meaningful 42 | inventory collection). 43 | 44 | Please note, if adding an adf file from GitHub, make sure you use the URL to 45 | the raw file, in the master branch, or you'll pull down all of the GitHub HTML 46 | as well! 47 | 48 | App Definition Files 49 | ======================= 50 | Software products are defined in an XML formatted *App Definition File*. This 51 | section describes the ADF format and structure, as well as makes suggestions 52 | about some of the more complicated types. To see an example ADF that 53 | incorporates most of these features, look no further than the [default ADF]() 54 | 55 | In most cases, each software "product" should be defined in its own file, 56 | although in some cases, grouping of products may make more sense. The ADF 57 | format allows an arbitrary number of Adware elements in one ADF file, should 58 | this be the case. 59 | 60 | The top-level tag should be ``, followed by metadata tags describing the document. 61 | ### Metadata Tags 62 | - ``: Version number of the ADF. This value should be incremented as 63 | changes are made over the lifetime of the definition. 64 | - ``: SavingThrow version 1.1.0 introduced the `` subelements `` and `` and the ability to do multiples of each. This obviously won't work in older versions of SavingThrow. Therefore, ADF files can specify a minimum version of SavingThrow required to use all of the included features. SavingThrow will log a warning, but try to run the ADF anyway, if the version is too old. 65 | - ``: The author of this ADF. 66 | - ``: If the ADF is based on another ADF, provide original source URL's to aid others in researching. 67 | - XML Comments for other top-level notes can go here as well. 68 | 69 | 70 | 71 | ### Adware Elements 72 | Each "product" should be wrapped in an `` tag. 73 | Under this, consider including an ``, which will get prefaced to 74 | any reports. 75 | 76 | If at all possible, include a URL reference for downloading the software so 77 | interested or OCD admins can test or verify the contents of the definition. 78 | Provide as many URLs as needed, each wrapped in `` tags. 79 | 80 | The simplest element is ``. `` defines a single file path to look 81 | for. The path can include standard shell globbing characters (`*?[a-z]`, etc) 82 | and text substitution as described below. No tilde expansions are performed. 83 | 84 | Files with ambiguous, misleading, dynamically renamed, or obfuscated filenames 85 | or paths can be identified with a `` element. Each `` 86 | element can include as many ``, ``, ``, and 87 | `` tags as needed to define problem files, and may optionally include a 88 | `ReplacementKey`. 89 | 90 | The rules are that if you include one or more ``, and one or 91 | more ``, each regex will be tested against every file found at 92 | ``. Matches will be added to a list. 93 | 94 | Then, for each ``, open each file from the above matches list, plus any 95 | ``s explictly specified (including globbing characters as per the 96 | standard `` tag), and perform a regular expression search of the contents 97 | of that file. Matches are added to the final candidate list. 98 | 99 | *NB: `TestedFile` support was added in version 1.1.0* 100 | 101 | 102 | Individual details on these tags are below: 103 | ``: Regular expression used against each file specified as a ``. Matches are added to a candidate list. 104 | ``: A directory on the computer to search with ``s. May use globbing characters. 105 | ``: As per the standard `` tag above; also allows standard globbing characters. This file will be opened and searched using the... 106 | ``: A regular expression that matches some text in the ``s and matched ``s. May include *one* group, indicated by `( )`'s, which will become the value of `` in the text replacement dictionary. 107 | ``: If provided, will add or update the text replacement dictionary with the `` value as the key, and uses the first group result from the above regex search as a value. 108 | 109 | ### Default ADF 110 | An example of how this is used can be seen in the default ADF: 111 | ``` 112 | 3 113 | 1.1.0 114 | Good Samaritan 115 | https://github.com/sheagcraig/SavingThrow 116 | 117 | /Library/LaunchAgents/com.*.agent.plist 118 | .*/Library/Application Support/(.*)/Agent/agent.app/Contents/MacOS/agent 119 | AGENT 120 | 121 | 122 | /Library/LaunchDaemons/com.*.helper.plist 123 | .*/Library/Application Support/(.*)/Agent/agent.app/Contents/MacOS/agent 124 | AGENT 125 | 126 | 127 | /Library/LaunchDaemons/com.*.daemon.plist 128 | .*/Library/Application Support/(.*)/Agent/agent.app/Contents/MacOS/agent 129 | AGENT 130 | 131 | /Library/LaunchAgents/com.%AGENT%.agent.plist 132 | /Library/LaunchDaemons/com.%AGENT%.helper.plist 133 | /Library/LaunchDaemons/com.%AGENT%.daemon.plist 134 | /Library/Application Support/%AGENT% 135 | This is a test. This is only a test, or there would have been a support ticket. 136 | 137 | ``` 138 | In this example, `` is being used to discover the obfuscated name 139 | of the VSearch agent. Each incarnation of this Adware seems to have a different 140 | "name", for example "projectX". This name can be found by regex searching with 141 | the provided pattern, as a `/Library/Application Support` subfolder in several 142 | of the LaunchD jobs it installs. The `` confirms that these files, 143 | despite having a globbed filename (e.g. `com.*.agent.plist`), are related to 144 | the adware, and not just false positives. We know this, because these files 145 | launch the `agent` binary. This regex has used parentheses to group the 146 | variable name, and added the value to the replacement dict with the key 147 | `AGENT`. 148 | 149 | Later, in the following group of `` elements, this value is then swapped 150 | into the `%AGENT%` section of the path (see Text Substitution below). Given our 151 | example name of "projectX", one filename then becomes 152 | `/Library/LaunchDaemons/com.projectX.daemon.plist`. 153 | 154 | #### Text Substitution 155 | `` elements can make use of text substitution using the results of a 156 | regular expression search from a `` operation. A substitution is 157 | indicated by wrapping the `ReplacementKey` in `%` characters, e.g. 158 | `/Library/LaunchAgents/com.%AGENT%.helper.plist`. `` 159 | elements are found and searched prior to `` searching. 160 | 161 | ### Process 162 | If a product has a recognizeable process name, put the name in a `` 163 | element contained within an `` tree, and SavingThrow can search for any 164 | instances of that process running and kill them. SavingThrow uses the bash 165 | shell command `pgrep` to search for running processes, which you can use to 166 | test your own process definitions. 167 | 168 | To eliminate false positives, SavingThrow takes the process name defined in the 169 | `` tag, and converts it to a regular expression that matches *ONLY* 170 | that name (with regex-reserved characters escaped). This is to say that, for 171 | example, if you define a `dbf`, it will generate a pgrep 172 | regex of `^dbf$`, which will match a process named exactly `dbf`, but NOT match 173 | the Apple process `dbfseventsd`, which `pgrep dbf` would match. 174 | 175 | ### Case Sensitivity 176 | Apple, despite appearances, configures drive partitions with a 177 | case-*insensitive* filesystem. Python is happy to believe this, and files will 178 | match even if the capitalization in the definition does not match that on the 179 | filesystem. That being said, please provide the "correct" capitalization in 180 | your definitions. 181 | 182 | This can be used to your advantage as well. In the example above, the `` 183 | group actually matches with `projectX` in the file's text. However, this 184 | capitalization is not consistent in all places; in some places it is `projectX` 185 | and others it is `projectx`. Due to the case insensitivity, however, when this 186 | value gets substituted in, even though the filename does not match the "real" 187 | filename's capitalization, SavingThrow still detects it. 188 | 189 | +1 to save against rods, staves, or wands. 190 | 191 | ![Image of Gelatinous Cube](https://media.tumblr.com/1f75ab89cd54f34d7441afb1bf4442c3/tumblr_inline_mzsyks2vh31qfgehu.png) 192 | -------------------------------------------------------------------------------- /SavingThrow.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | # Copyright (C) 2015 Shea G Craig 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | 17 | """ 18 | SavingThrow 19 | 20 | Identify or remove files known to be involved with undesired apps, 21 | based on curated lists of associated files. 22 | 23 | usage: SavingThrow.py [-h] [-v] [-s | -r | -q] 24 | [jamf-arguments [jamf-arguments ...]] 25 | 26 | Modular Undesired file Extension Attribute and Removal Script. Call with 27 | no arguments to run as an extension attribute, or with --remove or 28 | --quarantine to operate as a cleanup tool. 29 | 30 | positional arguments: 31 | jamf-arguments Accepts all passed positional arguments (or none) to 32 | allowCasper script usage. 33 | 34 | optional arguments: 35 | -h, --help show this help message and exit 36 | -v, --verbose Print to stdout as well as syslog. 37 | -s, --stdout Print standard report. 38 | -r, --remove Remove offending files. 39 | -q, --quarantine Move files to quarantine location. 40 | 41 | Roll to save against paralyzation, lest the Gelatinous Cube anesthetizes, 42 | and ultimately, digests you. 43 | """ 44 | 45 | # Historical Note 46 | # SavingThrow was originally a tool for detecting and removing the 47 | # software defined in Apple's KnowledgeBase article HT203987 located 48 | # here: https://support.apple.com/en-us/ht203987 49 | # As such, it's initial use was to specifically target and remove 50 | # adware. However, as the idea of a community-sourced tool for 51 | # detecting and removing apps based on collaborative research took off, 52 | # SavingThrow grew beyond its initial target of Adware to include 53 | # the ability to find and remove legitimate software as well. 54 | 55 | # The software and documentation has been updated as best as possible 56 | # without breaking compatibility with older behavior by naming things 57 | # more appropriately and respectfully as "Apps" rather than "Adware". 58 | # Ultimately, it is up to the person making use of this tool to decide 59 | # what is wanted in their environment, and no judgement or slander is 60 | # intentional or implied by the creator of this software. 61 | 62 | # Wherever compatibility with older ADF format tag-names would break 63 | # existing, but out-of-date installations of SavingThrow, the code will 64 | # use the old names with the term "Adware", despite their inaccurate 65 | # description of the range of software potentially targeted by users 66 | # of this software. 67 | 68 | 69 | # Import ALL the modules! 70 | import argparse 71 | from distutils.version import StrictVersion 72 | import glob 73 | import os 74 | import re 75 | import shutil 76 | import subprocess 77 | import sys 78 | import syslog 79 | import time 80 | import urllib2 81 | from xml.etree import ElementTree 82 | import zipfile 83 | # zipfile needs zlib available to compress archives. 84 | import zlib # pylint: disable=unused-import 85 | 86 | 87 | __version__ = "1.1.0" 88 | 89 | 90 | # Add any URLs to nefarious file lists 91 | # format like this 92 | # NEFARIOUS_FILE_SOURCES = ["https://blah.com/tacos.adf", 93 | # "https://blah.com/more-tacos.adf"] 94 | 95 | # Included for historical reasons: see note at top. 96 | NEFARIOUS_FILE_SOURCES = [] 97 | ADF_FILE_SOURCES = [] 98 | 99 | # Include Apple's identified Adware files by default. 100 | # https://support.apple.com/en-us/ht203987 101 | HT203987_URL = "https://raw.githubusercontent.com/SavingThrows/AdwareDefinitionFiles/master/Apple-HT203987.adf" # pylint: disable=line-too-long 102 | NEFARIOUS_FILE_SOURCES.append(HT203987_URL) 103 | 104 | ADF_FILE_SOURCES.extend(NEFARIOUS_FILE_SOURCES) 105 | 106 | CACHE = "/Library/Application Support/SavingThrow" 107 | 108 | 109 | class Logger(object): 110 | """Simple logging class with shared verbosity state.""" 111 | 112 | verbose = False 113 | 114 | @classmethod 115 | def enable_verbose(cls): 116 | """Set all Loggers to verbose.""" 117 | cls.verbose = True 118 | 119 | def log(self, message, log_level=syslog.LOG_ALERT): 120 | """Log to the syslog, and if verbose, also to stdout.""" 121 | syslog.syslog(log_level, message) 122 | if self.verbose: 123 | print message 124 | 125 | @classmethod 126 | def vlog(cls, message, log_level=syslog.LOG_ALERT): 127 | """Log to the syslog and to stdout.""" 128 | syslog.syslog(log_level, message) 129 | print message 130 | 131 | 132 | class FileController(object): 133 | """Manages a group of App objects. 134 | 135 | Atributes: 136 | apps: List of App objects to control. 137 | logger: Logger for handling output. 138 | """ 139 | 140 | def __init__(self): 141 | """Initialize a new controller with its attributes.""" 142 | self.apps = [] 143 | self.logger = Logger() 144 | 145 | def add_app_from_url(self, source): 146 | """Add an App object to controller from a URL. 147 | 148 | Given an URL to an app description file, attempt to 149 | download, parse, and generate a set of targeted files and 150 | processes, and add to internal apps list. 151 | 152 | Args: 153 | source: String URL to an ADF file. 154 | 155 | Raises: 156 | All expected exceptions are handled. 157 | """ 158 | cache_file = os.path.basename(source) 159 | # Handle URLs which don't point at a specific file. e.g. 160 | # Permalinked gists can be referenced with a directory URL. 161 | if not cache_file: 162 | # Remove the protocol and swap slashes to periods. 163 | # Drop the final slash (period). 164 | cache_file = source.split("//")[1].replace("/", ".")[:-1] 165 | cache_path = os.path.join(CACHE, cache_file) 166 | 167 | self.logger.log("Attempting to update App list: %s" % source) 168 | app_text = "" 169 | try: 170 | app_text = urllib2.urlopen(source).read() 171 | except urllib2.URLError as error: 172 | self.logger.log("Update failed: %s. Looking for cached copy" % 173 | error.message) 174 | 175 | if app_text: 176 | # Update our cached copy. 177 | try: 178 | with open(cache_path, "w") as cache_file: 179 | cache_file.write(app_text) 180 | except IOError as error: 181 | if error[0] == 13: 182 | print "Please run as root!" 183 | sys.exit(13) 184 | else: 185 | raise error 186 | else: 187 | # Fallback to the cached file. 188 | try: 189 | with open(cache_path, "r") as cache_file: 190 | app_text = cache_file.read() 191 | except IOError as error: 192 | self.logger.log("Error: No cached copy of %s or other error %s" 193 | % (source, error.message)) 194 | if app_text: 195 | try: 196 | adf_element = ElementTree.fromstring(app_text) 197 | except ElementTree.ParseError as err: 198 | logger = Logger() 199 | logger.log("ADF at %s is invalid XML (Error: %s)" % 200 | (source, err.message)) 201 | adf_element = None 202 | 203 | if adf_element is not None: 204 | self.warn_if_old_version(adf_element) 205 | self.apps.extend([App(app) for app in 206 | adf_element.findall("App")]) 207 | # See historical note at top. 208 | self.apps.extend([App(app) for app in 209 | adf_element.findall("Adware")]) 210 | 211 | def warn_if_old_version(self, adf_element): 212 | """Warn the user if the SavingThrow version is older than the ADF. 213 | 214 | An ADF file may optionally specify a minimum "SavingThrowVersion" 215 | which is needed for all features to work. The ADF may still work 216 | at reduced capacity. 217 | """ 218 | min_version_elem = adf_element.find("SavingThrowVersion") 219 | logger = Logger() 220 | if min_version_elem is not None: 221 | min_version = StrictVersion(min_version_elem.text) 222 | if min_version > StrictVersion(__version__): 223 | app_names = ", ".join([name.findtext("AppName") for name 224 | in adf_element.findall("App")]) 225 | adware_names = ", ".join([name.findtext("AdwareName") for name 226 | in adf_element.findall("Adware")]) 227 | if adware_names: 228 | app_names += ", %" % adware_names 229 | logger.log("%s require(s) SavingThrow version %s" % 230 | (app_names, min_version)) 231 | 232 | 233 | def report_string(self): 234 | """Generate a nicely formatted string of findings.""" 235 | result = "" 236 | for app in self.apps: 237 | if app.found or app.processes: 238 | result += "Name: %s\n" % app.name 239 | for num, found in enumerate(app.found, 1): 240 | result += "File %s: %s\n" % (num, found) 241 | for num, found in enumerate(app.processes.items(), 1): 242 | pids_string = ", ".join((str(pid) for pid in found[1])) 243 | result += "Process %s: %s PID: %s\n" % (num, found[0], 244 | pids_string) 245 | 246 | return result 247 | 248 | def report_to_stdout(self): 249 | """Report back on identified files to STDOUT.""" 250 | report_string = self.report_string() 251 | if report_string: 252 | result = "Files and processes found:\n%s" % report_string 253 | else: 254 | result = "No files or processes found." 255 | 256 | Logger.vlog(result) 257 | 258 | def extension_attribute(self): 259 | """Report back on found files in extension attribute format. 260 | 261 | For use with the Casper suite. 262 | 263 | Generates a report as XML and prints to STDOUT. Report is 264 | wrapped in tags, with identified files numbered and 265 | ordered by App type. 266 | """ 267 | result = "" 268 | report_string = self.report_string() 269 | if report_string: 270 | result += "True\n%s" % report_string 271 | else: 272 | result += "False" 273 | 274 | result += "" 275 | Logger.vlog(result) 276 | 277 | def remove(self): 278 | """Delete identified files and directories. 279 | 280 | Unloads launchd jobs, then removes all files and directories. 281 | 282 | If files are removed between App.find() and now, it will 283 | complain about missing files. 284 | 285 | Raises: 286 | Handles expected exceptions by logging. 287 | """ 288 | files = [(afile, app.name) for app in self.apps for afile in 289 | app.found] 290 | self.unload_and_disable_launchd_jobs([afile[0] for afile in files]) 291 | for item, name in files: 292 | try: 293 | if os.path.isdir(item): 294 | shutil.rmtree(item) 295 | elif os.path.isfile(item): 296 | os.remove(item) 297 | self.logger.log("Removed file: %s:%s" % (name, item)) 298 | except OSError as error: 299 | self.logger.log("Failed to remove file: %s:%s Error: " 300 | "%s" % (name, item, error)) 301 | 302 | def quarantine(self): 303 | """Quarantine files to a cache folder. 304 | 305 | Disables launchd jobs, then moves all files and directories 306 | to a Quarantine subfolder of the CACHE. Finally, a zip archive 307 | is produced, and files are deleted. 308 | 309 | If files are removed between App.find() and now, it will 310 | complain about missing files. 311 | 312 | Raises: 313 | Handles expected exceptions by logging. 314 | """ 315 | files = [(afile, app.name) for app in self.apps for afile in 316 | app.found] 317 | timestamp = time.strftime("%Y%m%d-%H%M%S") 318 | # Let's not bother if the list is empty. 319 | if files: 320 | quarantine_dir = os.path.join(CACHE, "Quarantine") 321 | if not os.path.exists(quarantine_dir): 322 | os.mkdir(quarantine_dir) 323 | backup_dir = os.path.join(quarantine_dir, timestamp) 324 | os.mkdir(backup_dir) 325 | 326 | self.unload_and_disable_launchd_jobs([afile[0] for afile in files]) 327 | 328 | for item, name in files: 329 | try: 330 | shutil.move(item, backup_dir) 331 | self.logger.log("Quarantined file: %s:%s" 332 | % (name, item)) 333 | except shutil.Error: 334 | # Raised when moving a directory, and it already 335 | # exists. 336 | counter = 1 337 | success = False 338 | while not success: 339 | if counter > 10: 340 | # Just give up. 341 | break 342 | try: 343 | shutil.move(item, backup_dir + "/%s-%s" % ( 344 | os.path.basename(item), counter)) 345 | success = True 346 | except shutil.Error: 347 | counter += 1 348 | except OSError as error: 349 | self.logger.log("Failed to quarantine file: %s:%s " 350 | "Error: %s" % (name, item, error)) 351 | 352 | zpath = os.path.join(quarantine_dir, "%s-Quarantine.zip" % 353 | timestamp) 354 | with zipfile.ZipFile(zpath, "w", zipfile.ZIP_DEFLATED) as zipf: 355 | os.chdir(backup_dir) 356 | for item in files: 357 | try: 358 | zipf.write(os.path.basename(item[0].rstrip("/"))) 359 | except OSError: 360 | pass 361 | 362 | self.logger.log("Zipped quarantined files to: %s" % zpath) 363 | 364 | shutil.rmtree(backup_dir) 365 | 366 | def unload_and_disable_launchd_jobs(self, files): 367 | """Unload and disable launchd configuration files. 368 | 369 | Unloads launchd jobs with the -w flag to prevent jobs from 370 | respawning. 371 | 372 | Args: 373 | files: An iterable of file paths on the system. Method will 374 | handle determining which files are launchd config 375 | files. 376 | """ 377 | # Find system-level LaunchD config files. 378 | conf_locs = {"/Library/LaunchAgents", 379 | "/Library/LaunchDaemons", 380 | "/System/Library/LaunchAgents", 381 | "/System/Library/LaunchDaemons"} 382 | 383 | # Add valid per-user config locations. 384 | for user_home in os.listdir("/Users"): 385 | candidate_launchd_loc = os.path.join("/Users", user_home, 386 | "Library/LaunchAgents") 387 | if os.path.exists(candidate_launchd_loc): 388 | conf_locs.add(candidate_launchd_loc) 389 | launchd_config_files = {file for file in files for conf_loc in 390 | conf_locs if file.find(conf_loc) == 0} 391 | 392 | # Attempt to unload and disable these files. 393 | for afile in launchd_config_files: 394 | self.logger.log("Unloading %s" % afile) 395 | result = "" 396 | try: 397 | # Toss out any stderr messages about things not being 398 | # loaded. We just want them off; don't care if they're 399 | # not running to begin with. 400 | result = subprocess.check_output( 401 | ["launchctl", "unload", "-w", afile], 402 | stderr=subprocess.STDOUT) 403 | except subprocess.CalledProcessError as error: 404 | # Job may not be loaded, so just log and move on. 405 | result = error.message 406 | finally: 407 | if result: 408 | self.logger.log("Launchctl response: %s" % result.strip()) 409 | 410 | def kill(self): 411 | """Kill all processes found by controlled App(s).""" 412 | kill_list = [pid for app in self.apps for process in 413 | app.processes.values() for pid in process] 414 | for process_id in kill_list: 415 | try: 416 | subprocess.check_call(["kill", str(process_id)]) 417 | self.logger.log("Killed process ID: %s" % process_id) 418 | except subprocess.CalledProcessError: 419 | self.logger.log("Failed to kill process ID: %s" % process_id) 420 | 421 | 422 | class App(object): 423 | """Represents one 'product', as defined in an App 424 | Definition File (ADF). 425 | 426 | Attributes: 427 | xml: The ADF as an xml.etree.Element. 428 | found: Set of files found on the current filesystem. 429 | processes: Dictionary of ProcessName: PIDs for currently 430 | running processes. 431 | name: 432 | String name of product from ADF/AppName. 433 | """ 434 | 435 | def __init__(self, xml): 436 | """Init instance variables and find on current filesystem. 437 | 438 | Args: 439 | xml: root xml.etree.Element of an App Definition File. 440 | """ 441 | self.xml = xml 442 | self._env = {} 443 | self.found = set() 444 | self.processes = {} 445 | # See historical note at top. 446 | self.name = (self.xml.findtext("AppName") or 447 | self.xml.findtext("AdwareName")) 448 | 449 | self.find() 450 | 451 | def find(self): 452 | """Identify files and processes on the system.""" 453 | logger = Logger() 454 | candidates = set() 455 | process_candidates = set() 456 | logger.log("Searching for files and processes defined in: %s" 457 | % self.name) 458 | # First look for regex-confirmed files to prepare for text 459 | # replacement. 460 | for tested_file in self.xml.findall("TestedFile"): 461 | # Perform a glob and gather the results for all Path elements. 462 | paths = set() 463 | for path in tested_file.findall("Path"): 464 | for pattern in ("*", ".*"): 465 | paths.update(set(glob.glob(os.path.join(path.text, 466 | pattern)))) 467 | 468 | # If provided, get and compile the regexes for filename 469 | # searching. 470 | fname_regexen = [fregex.text for fregex in 471 | tested_file.findall("FilenameRegex")] 472 | compiled_fname_regexen = [] 473 | if paths and fname_regexen: 474 | for fname_regex in fname_regexen: 475 | try: 476 | compiled_fname_regex = re.compile(fname_regex) 477 | compiled_fname_regexen.append(compiled_fname_regex) 478 | except re.error as re_error: 479 | logger.log("Invalid regex: %s with error: %s in ADF " 480 | "for: %s" % (fname_regex, self.name, 481 | re_error.message)) 482 | continue 483 | elif paths and not fname_regex: 484 | logger.log("Paths supplied for %s, but no Regex provided. " 485 | "Skipping this TestedFile." % self.name) 486 | continue 487 | 488 | # fnames collects full paths to files which match the 489 | # FilenameRegex and 'File' elements which glob, for later 490 | # content searching should it be specified. 491 | fnames = [] 492 | for fname_search in paths: 493 | for compiled_fname_regex in compiled_fname_regexen: 494 | if re.search(compiled_fname_regex, fname_search): 495 | fnames.append(fname_search) 496 | 497 | # Perform a glob and gather the results for all File elements. 498 | globs = [glob.glob(fname.text) for fname in 499 | tested_file.findall("File")] 500 | fnames.extend([item for glob_list in globs for item in glob_list]) 501 | 502 | # Get the regex to search within a file for, if it exists. 503 | regexen = [regex.text for regex in tested_file.findall("Regex")] 504 | compiled_regexen = [] 505 | if regexen: 506 | for regex in regexen: 507 | try: 508 | compiled_regex = re.compile(regex) 509 | compiled_regexen.append(compiled_regex) 510 | except re.error as re_error: 511 | logger.log("Invalid regex: %s with error: %s in ADF " 512 | "for: %s" % (regex, self.name, 513 | re_error.message)) 514 | continue 515 | # Get the replacement key if one is provided. 516 | replacement_key = tested_file.findtext("ReplacementKey") 517 | 518 | for fname in fnames: 519 | with open(fname, "r") as afile: 520 | text = afile.read() 521 | 522 | for compiled_regex in compiled_regexen: 523 | if re.search(compiled_regex, text): 524 | candidates.add(fname) 525 | 526 | if replacement_key: 527 | self._env[replacement_key] = re.search( 528 | regex, text).group(1) 529 | else: 530 | candidates.update(set(fnames)) 531 | 532 | # Now look for regular files. 533 | for std_file in self.xml.findall("File"): 534 | # Perform text replacments 535 | if "%" in std_file.text: 536 | for key in self._env: 537 | std_file.text = std_file.text.replace("%%%s%%" % key, 538 | self._env[key]) 539 | candidates.add(std_file.text) 540 | 541 | # Find files on the drive. 542 | matches = {match for filename in candidates for match in 543 | glob.glob(filename)} 544 | self.found.update(matches) 545 | if matches: 546 | logger.log("Found files for: %s" % self.name) 547 | 548 | # Build a set of processes to look for. 549 | process_candidates = {process.text for process in 550 | self.xml.findall("Process")} 551 | 552 | # Find running processes. 553 | self._get_running_process_ids(process_candidates) 554 | 555 | def _get_running_process_ids(self, processes): 556 | """Determine running process PIDs. 557 | 558 | Args: 559 | processes: Iterable of process names. These names should 560 | correspond to those seen in Bash ps/pgrep. 561 | """ 562 | self.processes = {} 563 | for process in processes: 564 | safe_process = "^%s$" % re.escape(process) 565 | try: 566 | pids = subprocess.check_output( 567 | ["pgrep", safe_process]).splitlines() 568 | self.processes[process] = pids 569 | except subprocess.CalledProcessError: 570 | # No results 571 | pass 572 | 573 | if self.processes: 574 | logger = Logger() 575 | logger.log("Found processes for: %s" % self.name) 576 | 577 | 578 | def build_argparser(): 579 | """Create our argument parser.""" 580 | description = ("Modular Undesired file Extension Attribute and " 581 | "Removal Script. Call with no arguments to run as " 582 | "an extension attribute, or with --remove or " 583 | "--quarantine to operate as a cleanup tool.") 584 | epilog = ("Roll to save against paralyzation, lest the Gelatinous " 585 | "Cube anesthetizes, and ultimately, digests you.") 586 | parser = argparse.ArgumentParser(description=description, epilog=epilog) 587 | help_msg = ("Accepts all passed positional arguments (or none) to allow" 588 | "Casper script usage.") 589 | parser.add_argument("jamf-arguments", nargs="*", help=help_msg) 590 | parser.add_argument("-v", "--verbose", action="store_true", 591 | help="Print to stdout as well as syslog.") 592 | mode_parser = parser.add_mutually_exclusive_group() 593 | mode_parser.add_argument( 594 | "-s", "--stdout", help="Print standard report.", action="store_true") 595 | mode_parser.add_argument( 596 | "-r", "--remove", help="Remove files.", action="store_true") 597 | mode_parser.add_argument( 598 | "-q", "--quarantine", help="Move files to quarantine " 599 | "location.", action="store_true") 600 | 601 | return parser 602 | 603 | 604 | def main(): 605 | """Manage arguments and coordinate our saving throw.""" 606 | # Ensure we have a cache directory. 607 | if not os.path.exists(CACHE): 608 | os.mkdir(CACHE) 609 | 610 | # Handle command line arguments. 611 | parser = build_argparser() 612 | # We use the parse_known_args method to avoid having to deal with 613 | # any empty arguments Casper may tack onto the end. 614 | args = parser.parse_known_args()[0] 615 | 616 | # Configure verbose on logger Borg. 617 | logger = Logger() 618 | if args.verbose: 619 | logger.enable_verbose() 620 | 621 | controller = FileController() 622 | for source in ADF_FILE_SOURCES: 623 | controller.add_app_from_url(source) 624 | 625 | # Which action should we perform? An EA has no arguments, so make 626 | # it the default. 627 | if args.remove: 628 | controller.remove() 629 | controller.kill() 630 | elif args.quarantine: 631 | controller.quarantine() 632 | controller.kill() 633 | elif args.stdout: 634 | controller.report_to_stdout() 635 | else: 636 | controller.extension_attribute() 637 | 638 | 639 | if __name__ == "__main__": 640 | main() 641 | -------------------------------------------------------------------------------- /TODO.md: -------------------------------------------------------------------------------- 1 | - Refactor to smaller units 2 | - Add in manual prompting mode. 3 | - Start Changelog 4 | - and add to a new community curated list based on 5 | - Jamfnation thread on it 6 | - Code from Elliot Jordan 7 | - Take a peek through AdwareMedic's stuff 8 | - Download and see what MacKeeper craps up 9 | - Does this need a defaults system, or can it/should it be managed by FORCING people to have to edit the global files list at the beginning? 10 | - Tests. Lol. 11 | - Figure out how to modularize "tricky" files like vsearch LaunchD jobs. 12 | - Probably need to go to XML file lists AND 13 | - Have a LaunchD type that can regex search through */Library/[LaunchAgents|LaunchDaemons]/com...plist 14 | - Which reminds me-probably makes sense to limit regex search on LaunchD jobs files to the ProgramArguments rather than the entire file. 15 | - Add better caching (don't download if not needed) 16 | - Add XML ADF format. 17 | - Add Safari extension handling: 18 | - Amazon Shopping Assistant by Spigot Inc. 19 | - Ebay Shopping Assistant by Spigot Inc. 20 | - Searchme by Spigot, Inc. 21 | - Slick Savings by Spigot Inc. 22 | - GoPhoto.It 23 | - Omnibar --------------------------------------------------------------------------------