Detection rules › Sigma

Hijack Legit RDP Session to Move Laterally

Severity
high
Author
Samir Bousseaden
Source
upstream

Detects the usage of tsclient share to place a backdoor on the RDP source machine's startup folder

MITRE ATT&CK coverage

TacticTechniques
Command & ControlT1219.002 Remote Access Tools: Remote Desktop Software

Event coverage

ProviderEvent IDTitle
Sysmon11FileCreate

Stages and Predicates

Stage 1: selection

Image|endswith: '\mstsc.exe'
TargetFilename|contains: '\Microsoft\Windows\Start Menu\Programs\Startup\'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
Imageends_with
  • \mstsc.exe corpus 5 (sigma 5)
TargetFilenamematch
  • \Microsoft\Windows\Start Menu\Programs\Startup\