Query: detection rule: Detects the expansion or decompression of cabinet files from potentially suspicious or uncommon locations, e.g. seen in
Matching passage: Sigma rule: Detects the expansion or decompression of cabinet files from potentially suspicious or uncommon locations, e.g. seen in. Logsource: windows / process_creation. Rule: title: Potentially Suspicious Cabinet File Expansion id: 9f107a84-532c-41af-b005-8d12a607639f status: test description: Detects the expansion or decompression of cabinet files from potentially suspicious or uncommon locations, e.g. seen in Iranian MeteorExpress related attacks references: - https://labs.sentinelone.com/meteorexpress-mysterious-wiper-paralyzes-iranian-trains-with-epic-troll - https://blog.malwarebytes.com/threat-intelligence/2021/08/new-variant-of-konni-malware-used-in-campaign-targetting-russia/ author: Bhabesh Raj, X__Junior (Nextron Systems) date: 2021-07-30 modified: 2024-11-13 tags: - attack.stealth - attack.t1218 logsource: category: process_creation product: windows detection: selection_cmd: Image|endswith: \expand.exe CommandLine|contains|windash: '-F:' selection_folders_1: CommandLine|contains: - :\Perflogs\ - :\ProgramData - :\Users\Public\ - :\Windows\Temp\ - \Admin$\ - \AppData\Local\Temp\ - \AppData\Roaming\ - \C$\ - \Temporary Internet selection_folders_2: - CommandLine|contains|all: - :\Users\ - \Favorites\ - CommandLine|contains|all: - :\Users\ - \Favourites\ - CommandLine|contains|all: - :\Users\ - \Contacts\ filter_optional_dell: ParentImage: C:\Program Files (x86)\Dell\UpdateService\ServiceShell.exe CommandLine|contains: C:\ProgramData\Dell\UpdateService\Temp\ condition: selection_cmd and 1 of selection_folders_* and not 1 of filter_optional_* falsepositives: - System administrator Usage level: medium
Near-miss passage: Sigma rule: Detects a highly relevant Antivirus alert that reports a hack tool or other attack tool. This event must not be ignored. Logsource: antivirus. Rule: title: Antivirus - Hacktool Signature id: fa0c05b6-8ad3-468d-8231-c1cbccb64fba status: stable description: 'Detects a highly relevant Antivirus alert that reports a hack tool or other attack tool. This event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place. ' references: - https://www.nextron-systems.com/2021/08/16/antivirus-event-analysis-cheat-sheet-v1-8-2/ - https://www.nextron-systems.com/?s=antivirus author: Florian Roth (Nextron Systems), Arnim Rupp date: 2021-08-16 modified: 2026-06-15 tags: - attack.execution - attack.t1204 logsource: category: antivirus detection: selection: - Signature|startswith: - ATK/ - Exploit.Script.CVE - HKTL - HTOOL - PWS. - PWSX - SecurityTool - Signature|contains: - Adfind - BloodH - BloodyAD - Brutel - BruteR - Cobalt - COBEACON - Cometer - DumpCreds - EDRfreeze - FastReverseProxy - Hacktool - Havoc - Impacket - Keylogger - Koadic - Mimikatz - Nighthawk - PentestPowerShell - Potato - PowerSploit - PowerSSH - PshlSpy - PSWTool - PWCrack - PWDump - Responder - Rozena - Rusthound - Sbelt - Seatbelt - SecurityTool - SharpDump - SharpHound - Shellcode - Sliver - Snaffler - SOAPHound - Splinter - Stowaway - Swrort - Trojan.Hound - TurtleLoader - Undefend - Undfnd condition: selection falsepositives: - Unlikely level: high