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SigmaHQ Detections

@sigmaHQ
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6,797 detections

Detects a tscon.exe start as LOCAL SYSTEM
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
Detects file access to browser credential storage paths by non-browser processes, which may indicate credential access attempts. Adversaries may attempt to access browser credential storage to extract sensitive information such as usernames and passwords or cookies. This behavior is often commonly observed in credential stealing malware.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
60108
Detects the execution of SharpSuccessor, a tool used to exploit the BadSuccessor attack for privilege escalation in WinServer 2025 Active Directory environments.
Successful usage of this tool can let the attackers gain the domain admin privileges by exploiting the BadSuccessor vulnerability.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
Detects DNS queries to domains commonly used by threat actors to host malware payloads or redirect through URL shorteners.
These include platforms like Cloudflare Workers, TryCloudflare, InfinityFree, and URL shorteners such as tinyurl and lihi.cc.
Such DNS activity can indicate potential delivery or command-and-control communication attempts.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
Identifies IPs from which users grant access to other users on azure resources and alerts when a previously unseen source IP address is used.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
104
Detects the invocation of MS SQL transactions that are destructive towards table or database data, such as "DROP TABLE" or "DROP DATABASE".
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
Detects Deno writing a file from a direct HTTP(s) call to the AppData folder or introducing its own malicious DLL. This behavior may indicate an attempt to execute remotely hosted, potentially malicious files through Deno.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0032
Detects the creation of files with specific naming patterns, such as '\sessionresume_[a-zA-Z]{8}$', which are known to be used by the Impacket toolkit, particularly its secretsdump.py module. This activity often indicates an attempt to dump credentials from a compromised system.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0028
Detects network connections with a suspicious user-agent string containing "katz-ontop", which may indicate Katz Stealer activity. This specific user-agent string is likely hardcoded or characteristic of the malware's C2 communication.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
1033
Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
002
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