SigmaHQ Detections
@sigmaHQ12 followers122,473 downloads2,593 copies16 likes160,504 views
6,800 detections
Filters
Last updated
All Time
Detection languages
6,800
Categories
2,695
910
506
407
372
Platforms
5,315
505
263
204
164
Products / Services
2,051
1,570
475
423
316
MITRE Techniques
2,652
1,739
1,656
1,503
764
CVEs
19
19
19
16
10
Detects usage of the "type" command to download/upload data from WebDAV server. This technique can be used by adversaries to transfer files into or out of a compromised environment.
Detects the execution of "ConfigSecurityPolicy.EXE" with command-line arguments containing URLs (ftp://, http://, https://). This Windows Defender binary can be abused by attackers to download or upload files, potentially leading to arbitrary file download or data exfiltration.
Detects suspicious execution of the Microsoft desktopimgdownldr utility. This utility is being used with parameters to download files from the Internet, specifically when the '/lockscreenurl:' argument is present and the downloaded file is not a common image format (like .jpg, .jpeg, or .png), or when it's used in conjunction with 'reg delete' and '\PersonalizationCSP' to potentially manipulate system settings related to personalization. This behavior can indicate an adversary attempting to download malicious payloads or modify system configurations.
Detects the creation of suspicious child processes by hh.exe (Microsoft HTML Help). Adversaries often abuse hh.exe to proxy execution of other malicious binaries or scripts, leveraging it as a LOLBIN (Living Off The Land Binary) to bypass defenses. The rule specifically looks for hh.exe launching common system utilities that can be used for malicious purposes, such as CertReq.exe, CertUtil.exe, cmd.exe, cscript.exe, installutil.exe, MSbuild.exe, MSHTA.EXE, msiexec.exe, powershell.exe, pwsh.exe, regsvr32.exe, rundll32.exe, schtasks.exe, wmic.exe, and wscript.exe.
Detects the use of Cobalt Strike commands entered into the command shell. This rule specifically looks for common Cobalt Strike post-exploitation commands such as 'psinject', 'spawnas', 'make_token', 'remote-exec', 'rev2self', 'dcsync', 'logonpasswords', 'execute-assembly', and 'getsystem' when executed via cmd.exe. This often indicates an operator error where Cobalt Strike commands are mistakenly typed directly into a compromised system's command prompt instead of the Cobalt Strike beacon console.
This rule detects the execution of PowerShell with specific command-line obfuscation patterns known to be used by the CrackMapExec (CME) penetration testing framework. The rule looks for PowerShell executable names and specific string patterns within the command line that CME uses for obfuscation, such as 'join*split', '( $ShellId[1]+$ShellId[13]+''x'')', '( $PSHome[*]+$PSHOME[*]+', '( $env:Public[13]+$env:Public[5]+''x'')', and '( $env:ComSpec[4,*,25]-Join'''')'. These patterns are designed to evade simple string-based detections.
Detects suspicious process patterns indicative of CrackMapExec (CME) being used to dump LSASS credentials. The rule looks for specific command-line arguments used by CME for LSASS dumping, including combinations of 'tasklist' with 'Imagename eq lsass.exe', 'rundll32.exe' with 'comsvcs.dll' and temporary paths, and 'tasklist' with 'findstr /i "lsass"'. These patterns are commonly observed when attackers attempt to extract credentials from the Local Security Authority Subsystem Service (LSASS) process memory.
This rule detects the execution of the password guessing hack tool Hydra based on specific command-line parameters. It looks for the presence of '-u ' and '-p ' which are commonly used to specify username and password lists, respectively. Additionally, it checks for the keywords '^USER^' and '^PASS^' which are often used as placeholders in Hydra's command-line arguments for iterating through user and password lists during a brute-force attack.
Detects the use of `cmd.exe` to launch PowerShell commands that leverage `clip.exe` and the Windows clipboard for obfuscated execution. This technique is often used to evade detection by breaking up malicious payloads or commands.
Detects the use of the 'Ilasm.exe' utility to compile C# Intermediate Language (IL) code into executable (EXE) or dynamic-link library (DLL) files. This activity can be indicative of an adversary compiling malicious code on a compromised system, potentially to bypass security controls or execute custom payloads.
Page 531 of 680