Query: Sigma rule for Detects a program that invoked suspicious DNS queries known from Cobalt Strike beacons
Matching passage: Sigma rule: Detects a program that invoked suspicious DNS queries known from Cobalt Strike beacons. Logsource: windows / dns_query. Rule: title: Suspicious Cobalt Strike DNS Beaconing - Sysmon id: f356a9c4-effd-4608-bbf8-408afd5cd006 related: - id: 0d18728b-f5bf-4381-9dcf-915539fff6c2 type: similar status: test description: Detects a program that invoked suspicious DNS queries known from Cobalt Strike beacons references: - https://www.icebrg.io/blog/footprints-of-fin7-tracking-actor-patterns - https://www.sekoia.io/en/hunting-and-detecting-cobalt-strike/ author: Florian Roth (Nextron Systems) date: 2021-11-09 modified: 2023-01-16 tags: - attack.command-and-control - attack.t1071.004 logsource: product: windows category: dns_query detection: selection1: QueryName|startswith: - aaa.stage. - post.1 selection2: QueryName|contains: .stage.123456. condition: 1 of selection* falsepositives: - Unknown level: critical
Near-miss passage: Sigma rule: Detects potentially highly relevant antivirus events in the application log based on known virus signature names and mal. Logsource: windows / application. Rule: title: Relevant Anti-Virus Signature Keywords In Application Log id: 78bc5783-81d9-4d73-ac97-59f6db4f72a8 status: test description: 'Detects potentially highly relevant antivirus events in the application log based on known virus signature names and malware keywords. ' references: - https://www.virustotal.com/gui/file/13828b390d5f58b002e808c2c4f02fdd920e236cc8015480fa33b6c1a9300e31 - https://www.virustotal.com/gui/file/15b57c1b68cd6ce3c161042e0f3be9f32d78151fe95461eedc59a79fc222c7ed - https://www.virustotal.com/gui/file/5092b2672b4cb87a8dd1c2e6047b487b95995ad8ed5e9fc217f46b8bfb1b8c01 - https://www.nextron-systems.com/?s=antivirus author: Florian Roth (Nextron Systems), Arnim Rupp date: 2017-02-19 modified: 2024-12-25 tags: - attack.resource-development - attack.t1588 logsource: product: windows service: application detection: keywords: - Adfind - 'ASP/BackDoor ' - ATK/ - Backdoor.ASP - Backdoor.Cobalt - Backdoor.JSP - Backdoor.PHP - Blackworm - Brutel - BruteR - Chopper - Cobalt - COBEACON - Cometer - CRYPTES - Cryptor - Destructor - DumpCreds - Exploit.Script.CVE - FastReverseProxy - Filecoder - 'GrandCrab ' - HackTool - HKTL - HTool- - /HTool - .HTool - IISExchgSpawnCMD - Impacket - 'JSP/BackDoor ' - Keylogger - Koadic - Krypt - Lazagne - Metasploit - Meterpreter - MeteTool - mikatz - Mimikatz - Mpreter - MsfShell - Nighthawk - Packed.Generic.347 - PentestPowerShell - Phobos - 'PHP/BackDoor ' - Potato - PowerSploit - PowerSSH - PshlSpy - PSWTool - PWCrack - PWDump - Ransom - Rozena - Ryzerlo - Sbelt - Seatbelt - 'SecurityTool ' - SharpDump - Shellcode - Sliver - Splinter - Swrort - Tescrypt - TeslaCrypt - TurtleLoader - Valyria - Webshell filter_optional_generic: - anti_ransomware_service.exe - Anti-Ransomware - Crack - cyber-protect-service.exe - encryptor - Keygen filter_optional_information: Level: 4 filter_optional_restartmanager: Provider_Name: Microsoft-Windows-RestartManager condition: keywords and not 1 of filter_optional_* falsepositives: - Some software piracy tools (key generators, cracks) are classified as hack tools level: high