SigmaHQ Detections
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6,800 detections
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Detects suspicious modifications to the SentinelOne context menu scan command in the Windows Registry. This rule specifically looks for changes made by processes other than the legitimate SentinelOne agent, indicating potential tampering or persistence mechanisms.
Detects process access requests to the LSASS process with specific call trace calls and access masks. This behavior is expressed by many credential dumping tools such as Mimikatz, NanoDump, Invoke-Mimikatz, Procdump and even the Taskmgr dumping feature.
Detects the execution of a system command, specifically 'cmd.exe', initiated by the ScreenConnect remote management service. This rule looks for 'cmd.exe' being spawned as a child process of 'ScreenConnect.ClientService.exe' and further refines the detection by looking for command lines that include the pattern '\TEMP\ScreenConnect\', which is indicative of temporary script execution by ScreenConnect.
Detects potential web shell execution originating from the ScreenConnect server process. This rule specifically looks for the ScreenConnect.Service.exe spawning cmd.exe or csc.exe, which could indicate an attacker leveraging a compromised ScreenConnect server to execute arbitrary commands or compile code.
Detects potentially suspicious file downloads directly from IP addresses and stored in suspicious locations using Wget.exe. This rule looks for executions of 'wget.exe' where the command line includes an IP address, 'http', and specific suspicious paths often used for temporary files or public user directories. This could indicate an adversary downloading malicious tools or files directly to a system.
Detects the execution of an AnyDesk binary with a version prior to 8.0.8. Prior to version 8.0.8, the Anydesk application used a signing certificate that got compromised by threat actors. This rule helps detect instances of older versions of Anydesk using the compromised certificate, which is recommended to avoid attackers leveraging the certificate to sign their binaries and bypass detections.
This rule detects highly relevant antivirus events in the Windows Application log by looking for specific keywords associated with known virus signatures, malware, and offensive security tools. It aims to identify instances where an antivirus product has detected or quarantined malicious software or activity.
Detects attempted file load events that did not meet the signing level requirements. It often means the file's signature is revoked or a signature with the Lifetime Signing EKU has expired. This event is best correlated with EID 3089 to determine the error of the validation.
Detects a suspicious download using the BITS client from a FQDN that is unusual. Adversaries may abuse BITS jobs to persistently execute or clean up after malicious payloads. The rule specifically looks for BITS client event ID 16403 (BITS job completed) and filters out common and legitimate remote domains to identify potentially malicious or uncommon sources.
Detects potential web shell execution from the ScreenConnect server process.
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