SigmaHQ Detections
@sigmaHQ12 followers122,429 downloads2,470 copies16 likes159,532 views
6,797 detections
Filters
Last updated
All Time
Detection languages
6,797
Categories
2,695
910
506
407
372
Platforms
5,313
505
263
203
164
Products / Services
2,050
1,570
475
423
316
MITRE Techniques
2,652
1,738
1,655
1,502
764
CVEs
19
19
19
16
10
Detects the use of PowerShell to execute the 'Set-MpPreference' cmdlet to configure Windows Defender's threat severity default action to 'Allow' (value '6') or 'NoAction' (value '9').
This is a highly suspicious configuration change that effectively disables Defender's ability to automatically mitigate threats of a certain severity level.
An attacker might use this technique via the command line to bypass defenses before executing payloads.
This is a highly suspicious configuration change that effectively disables Defender's ability to automatically mitigate threats of a certain severity level.
An attacker might use this technique via the command line to bypass defenses before executing payloads.
Detects the use of reg.exe or PowerShell to delete the Windows Defender context menu handler registry keys.
This action removes the "Scan with Microsoft Defender" option from the right-click menu for files, directories, and drives.
Attackers may use this technique to hinder manual, on-demand scans and reduce the visibility of the security product.
This action removes the "Scan with Microsoft Defender" option from the right-click menu for files, directories, and drives.
Attackers may use this technique to hinder manual, on-demand scans and reduce the visibility of the security product.
Detects a "dllhost" process spawning with no commandline arguments which is very rare to happen and could indicate process injection activity or malware mimicking similar system processes.
Detects the use of the Dinject PowerShell cradle based on the specific flags
Detects usage of HollowReaper, a process hollowing shellcode launcher used for stealth payload execution through process hollowing.
It replaces the memory of a legitimate process with custom shellcode, allowing the attacker to execute payloads under the guise of trusted binaries.
It replaces the memory of a legitimate process with custom shellcode, allowing the attacker to execute payloads under the guise of trusted binaries.
Detects Stracciatella which executes a Powershell runspace from within C# (aka SharpPick technique) with AMSI, ETW and Script Block Logging disabled based on PE metadata characteristics.
Detects the addition of a new rule to the Windows firewall via netsh
Detects Netsh command execution that whitelists a program located in a suspicious location in the Windows Firewall
Detects usage of the netsh command to open and allow connections to port 3389 (RDP). As seen used by Sarwent Malware
Detects base64 encoded "MpPreference" PowerShell cmdlet code that tries to modifies or tamper with Windows Defender AV
Page 38 of 680