20.2. THOR 10.6 (Stable)

20.2.1. THOR Version 10.6.24

Type	Description
Bugfix	Fix an issue where `--lowprio` and `--verylowprio` were not working correctly on Linux

Type	Description
Bugfix	Fix an issue where unicode characters in file names could cause panics
Bugfix	Fix an issue where corrupt archive files could cause panics
Bugfix	Fix an issue where the 32-bit version of THOR for Linux crashed when loading the signatures
Bugfix	Fix an issue where the NetworkShares module incorrectly reported an error

Type	Description
Change	SFX RAR executables are now extracted using the Archive feature instead of the ExeDecompress feature, which allows access to the filenames within the archive
Change	Remove action feature due to potential abusability.
Change	Update to Golang v1.20.8
Change	Update to OpenSSL v1.1.1w
Change	Update to YARA v4.3.2
Bugfix	Fix an issue where registry values with new lines could lead to messages missing information about the registry key

Type	Description
Feature	Add SIGTYPE fields to Sigma matches
Feature	Add TYPE fields to reasons
Change	Update to Golang v1.19.9
Change	Terminate early when an invalid flag is used in the THOR template file
Change	Report YARA matches in the DeepDive feature with reasons
Change	Increase default YARA stack size to 32768
Bugfix	Don't report filename matches on nonexisting files when resolving the file name from a reference using environment variables

Type	Description
Feature	Add a warning when running on MacOS without full disk access
Change	Update to Golang v1.19.5
Bugfix	Improve trace output for decompressing EXE files
Bugfix	Exclude MacOS directories used to for cloud storage unless '--alldrives' is specified
Bugfix	Set rule date in '--print-signatures' output to modified date, if available
Bugfix	Check if file is located remotely before trying to read file stats

Type	Description
Change	Update to Golang v1.19.2
Bugfix	Fixed an issue where scans were not properly resumed
Bugfix	Fixed an issue that caused ASGARD to download THOR even if it was cached locally

Type	Description
Change	Removed some exclusions where archives were not scanned

Type	Description
Change	Errors now appear as the first section in HTML reports
Change	Update to YARA v4.2.3
Change	Update to Golang v1.18.5

Type	Description
Feature	Show Office Connection Cache entries
Change	Show informational message when downloading a license from Portal or ASGARD
Change	Update to Golang v1.18.3
Change	Update to YARA v4.2.1
Change	Improved HTML report generation performance and HTML report UI
Change	Registry YARA rules are now loaded on other platforms than Windows as well (for image scans)
Bugfix	Added MATCHED_STRINGS field to filename IOC matches to improve visibility for complex IOCs
Bugfix	Fixed an issue where Sigma rules could use a large amount of memory during initialization
Bugfix	Fixed an issue where Linux services were incorrectly reported as group writable
Bugfix	Corrected the signature type (custom or internal) for C2 IOC matches on memory

Type	Description
Feature	Added a new 'diagnostics' command for THOR Util that collects information about a hanging or terminated THOR process
Feature	Custom process exclude regexps can now be specified in 'config/process-excludes.cfg'
Bugfix	Log messages about suspicious services are now correctly logged as belonging to the 'ServiceCheck' module
Bugfix	Process excludes are now handled more stringently, and accesses on excluded processes are less intrusive
Bugfix	Scan end time no longer sometimes misses from the HTML report
Change	Matches from deprecated sigma rules are no longer shown
Change	Upgrade of the sigma matching engine from v1 to v2
Change	Update to Golang v1.17.9
Change	Update to PE-Sieve v0.3.3
Change	Default maximum file size increased to 30 MB (200 MB for intense mode)

Type	Description
Bugfix	The Bifrost 2 server option is again available in ASGARD

Type	Description
Bugfix	Some YARA rules were not applied correctly on unpacked files
Bugfix	Catch panics that could occur when unpacking certain RAR files
Bugfix	THOR no longer attempts to access files that are not local (e.g. OneDrive files) when they are referenced from elsewhere unless '--alldrives' is used

Type	Description
Feature	Executing 32 bit THOR on a 64 bit Windows system now causes a warning
Feature	Hash IOCs may now have an optional score (default is 100, as before)
Change	Disable RarVM support
Change	Change colors for some log levels to improve readability in specific terminals
Change	THOR Util can no longer download licenses from ASGARD, use THOR instead
Change	THOR now terminates if the internal signatures can't be loaded
Change	Intrusive process actions that require process memory access are now skipped on excluded processes
Change	THOR Lite Util no longer supports '--force' for upgrades and updates
Change	Update to Golang v1.16.13
Bugfix	Process dumps are now created with secure access rights

Type	Description
Feature	Support Apple M1
Feature	Save resume state on system shutdown or logoff
Change	Upgrade PE-Sieve to v0.3.1
Change	Upgrade OpenSSL to v1.1.1l

Type	Description
Change	Update to Golang v1.16.7
Bugfix	Show process details for PPL processes correctly

Type	Description
Feature	Print rule authors for YARA rule matches
Feature	Check environment variables for other processes
Feature	Use Administrator rights on Windows, if available
Change	Upgrade PE-Sieve to v0.3.0
Fix	Handle UTF-16 output in string matches better
Fix	Improve progress estimation for Eventlog module
Fix	Skip non-local files on Windows (from e.g. OneDrive) unless '--alldrives' is set

Type	Description
Feature	Analyze ETW logs in the background for CobaltStrike beacon characteristics. This can be disabled with '--noetwwatcher'.
Feature	Check IP forwarding on Linux as part of the Firewall module.
Feature	Analyze authorized_keys files that are found. This feature can be disabled with '--noauthorizedkeys'.
Feature	Support metadata YARA rules which are applied to all files, but can only access the first 100 bytes of the file. These files must contain the "meta" word in their filename. If a Metadata YARA rule with the DEEPSCAN tag matches, a full YARA scan on the file will be triggered.
Feature	Add the "group" external variable to YARA rules for non-Windows scans.
Change	Upgrade YARA to v4.1.1
Change	Print more timestamps for deep dive targets
Change	Disable global YARA rules since they could impact THOR's internal rules
Fix	Handle a bug where THOR froze when calculating the hash of a file opened via the MFT

Type	Description
Bugfix	Apply cross platform IOCs correctly if '--lab' is set
Bugfix	Don't scan specific files twice if '--lab' is set

Type	Description
Upstream	Merge current changes from THOR 10.5.16
Feature	Scanning for symlinks and irregular files with Filename IOCs
Feature	YARA Meta rules (filename needs to contain the word meta) which are applied on all files, but which only can access the first 100 Bytes of the file
Feature	Improve Scheduled Task parsing and give a notice if a task's binary does not exist
Feature	Parse Cobalt Strike beacon configurations and return basic information about them
Feature	New command line option '--allfiles' that includes file types and locations that are usually not interesting. This is a subset of what '--intense' does.
Change	Upgrade PE-Sieve to v0.2.9.6
Change	Disable quick edit mode for a Windows console while THOR is running in it
Change	Update to Golang 1.15.11
Bugfix	Fix some issues with using THOR Util templates

Type	Description
Upstream	Merge changes from THOR 10.5.15
Change	Multithreading and virtual mapping have been restricted to Forensic Lab and Incident Response license types
Change	THOR TechPreview packages now contain a THOR Util configuration file to default to the TechPreview on upgrades.