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SigmaHQ Detections

@sigmaHQ
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6,797 detections

Detects external IP address lookups by non-browser processes via services such as "api.ipify.org". This could be indicative of potential post compromise internet test activity.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects when an attacker registers a new IFilter for an extension. Microsoft Windows Search uses filters to extract the content of items for inclusion in a full-text index.
You can extend Windows Search to index new or proprietary file types by writing filters to extract the content, and property handlers to extract the properties of files.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects the execution of Dumpert, a tool used to dump the memory of the lsass.exe process, which often contains sensitive credential material. Detection is based on specific MD5 hash values or the presence of 'Dumpert.dll' in the command line.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0014
Detects the use of the "rsync" utility to execute a shell. Such behavior may be associated with privilege escalation, unauthorized command execution, or to break out from restricted environments.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
2021
Detects the execution of a shell as a sub-process of "rsync" without the expected command line flag "-e" being used. This behavior is commonly associated with attempts to exploit CVE-2024-12084, leading to arbitrary command execution or privilege escalation.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
3020
Detects wceaux.dll access while WCE pass-the-hash remote command execution on source host
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects the creation of a file named "wermgr.exe" in an uncommon directory, which could indicate exploitation of CVE-2023-36874. The rule specifically looks for 'wermgr.exe' being created outside of standard Windows system directories, aiming to catch malicious instances masquerading as the legitimate Windows Error Reporting Manager.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0020
Detects the execution of a shell as sub process of "rsync" without the expected command line flag "-e" being used, which could be an indication of exploitation as described in CVE-2024-12084. This behavior is commonly associated with attempts to execute arbitrary commands or escalate privileges, potentially leading to unauthorized access or further exploitation.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
001
Detects exploitation attempts of CVE-2024-49113, known as LDAP Nightmare. This rule specifically looks for "Application Error" events (EventID 1000) where the faulting application is "lsass.exe" and the faulting module is "WLDAP32.dll". This combination indicates a crash in the Local Security Authority Subsystem Service (LSASS) related to the Windows Lightweight Directory Access Protocol (LDAP) client library, which is consistent with the described vulnerability exploitation.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
2025
Detects exploitation indicators of CVE-2022-42475, a heap-based buffer overflow vulnerability in FortiOS SSL-VPN's sslvpnd daemon. The rule specifically looks for the creation of known malicious files or configuration backups in specific directories, which are artifacts of successful exploitation.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
1053
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