Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the creation or modification of registry keys related to printer drivers that contain specific strings associated with Mimikatz or the PrinterNightmare vulnerability (CVE-2021-1675, CVE-2021-34527). The rule looks for 'QMS 810' or 'mimikatz' in printer driver paths, or a combination of 'legitprinter' and printer environment paths, or specific strings like 'Gentil Kiwi', 'mimikatz printer', or 'Kiwi Legit Printer' in registry objects related to printing.
Detects the creation of Process Explorer drivers by processes other than Process Explorer itself. This activity can indicate that hack tools or malware are attempting to use the Process Explorer driver for privilege escalation, often by dropping the driver to disk, running a service with it, and then removing it.
This rule detects attempts to coerce NTLM authentication on the Printer Spooler service, which can be used for privilege escalation. Specifically, it looks for `rundll32.exe` executing with command-line arguments related to `davclnt.dll,DavSetCookie` and keywords like `spoolss`, `srvsvc`, or `/print/pipe/`, indicating an NTLM relay attack against the print spooler service.
Detects the execution of the SharpImpersonation tool, which is used for manipulating tokens on Windows systems. This can occur remotely via tools like PsExec/WmiExec or interactively. The rule specifically looks for the executable name or command-line arguments indicating token manipulation techniques such as 'CreateProcessAsUserW' or 'ImpersonateLoggedOnUser', often combined with 'user:' and 'binary:' or 'shellcode:' parameters.
This rule detects files that exploit CVE-2020-0601, a spoofing vulnerability in Windows CryptoAPI (Crypt32.dll). The rule specifically looks for the presence of a particular Object Identifier (OID) for prime explicit curve parameters and a set of known Elliptic Curve Cryptography (ECC) public keys within a Portable Executable (PE) file that also has a digital signature. This combination of indicators is characteristic of the 'CurveBall' exploit, which leverages the vulnerability to spoof code-signing certificates.
Yara rule that detects CVE-2020-0601 exploit.
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