SigmaHQ Detections
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6,797 detections
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Detects modifications to the Windows Registry that disable the System Restore functionality. This is achieved by setting specific registry values ('DisableConfig' or 'DisableSR') to '1' (DWORD 0x00000001) within the System Restore related registry paths.
Detects when an attacker attempts to add a new network provider by modifying the registry, which can be used to dump clear text credentials. This technique is similar to how tools like NPPSpy operate by registering a malicious network provider DLL to intercept credentials during the authentication process.
Detects the execution of javaw.exe from an AppData folder, which is a known behavior of Adwind RAT (also known as jRAT). Additionally, it detects the execution of cscript.exe with specific command-line arguments related to 'Retrive.vbs', which could indicate further malicious activity or a different variant/stage of the attack.
This rule detects potential Dridex malware activity by identifying specific process patterns. It looks for `svchost.exe` processes with command lines indicating execution from a user's Desktop directory, which is unusual for legitimate svchost processes. It also identifies `regsvr32.exe` being spawned by `excel.exe` with specific command-line arguments often used by Dridex for DLL execution from temporary directories. Additionally, it flags anomalous child processes like `whoami.exe /all` or `net.exe view` (or `net1.exe view`) being spawned by `svchost.exe`, which could indicate discovery activities post-compromise by Dridex.
Detects exploitation attempts of the OWASSRF variant targeting Exchange servers. This exploit leverages the OWA endpoint to access the PowerShell backend endpoint, often associated with CVE-2022-41080 and CVE-2022-41082.
Detects potential beaconing activity from the 3CXDesktopApp to known malicious domains associated with the 3CX supply chain compromise. This rule identifies outbound network connections initiated by the 3CXDesktopApp.exe process to a specific list of suspicious hostnames, indicating potential command and control communication.
This rule detects specific command-line executions associated with Mustang Panda's activity, particularly targeting the Australian government, as reported by Lab52. The rule looks for two distinct patterns: the copying of 'SolidPDFCreator.dll' to a specific public user directory, and the modification of the Windows Registry 'Run' key to establish persistence for 'SolidPDF' using the same directory. These actions indicate an attempt to install and persist malicious software.
Detects the execution of 'openssl' with specific command-line arguments to connect to an IP address on ports 443 or 8080. This activity has been observed in campaigns by UNC4841 for SSL certificate exfiltration and as a C2 channel using named pipes. Further investigation of commands executed in the temporal vicinity of this activity is recommended.
Detects the execution of 'wget' to download compressed files ('.zip' or '.rar') from 'temp.sh'. This activity has been observed in attacks attributed to UNC4841, specifically during their exploitation of Barracuda ESG zero-day vulnerabilities.
This rule detects potentially suspicious command-line arguments used with common data compression tools like 7-Zip and WinRAR. The presence of parameters such as '-p' (password), '-hp' (header password), '-sdel' (secure delete after archiving), '-ta', '-tb', and '-dw' can indicate an adversary's attempt to archive collected data, potentially encrypt it, and then remove the original files to cover their tracks. This behavior is often observed during the collection and staging phases of an attack, prior to exfiltration. The rule includes a filter to reduce false positives by excluding processes launched from standard program file paths.
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