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SigmaHQ Detections

@sigmaHQ
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6,797 detections

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.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0011
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.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0033
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.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0029
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.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0024
Detects potential web shell execution from the ScreenConnect server process.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
001
Detects potentially suspicious file downloads directly from IP addresses and stored in suspicious locations using Wget.exe
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
001
Detects the execution of Evil-WinRM via PowerShell Module logs by leveraging the hardcoded strings inside the utility.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
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.
Use this rule to detect instances of older versions of Anydesk using the compromised certificate
This is recommended in order to avoid attackers leveraging the certificate and signing their binaries to bypass detections.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects the execution of a system command via the ScreenConnect RMM service.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects the potential use of Rubeus by identifying the registration of a new trusted logon process. This activity is often associated with Kerberos-related attacks, where Rubeus is used to manipulate Kerberos tickets or processes for privilege escalation or lateral movement.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
1027
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