Detection rules › Sigma

HackTool - Impacket File Indicators

Severity
high
Author
The DFIR Report, IrishDeath
Source
upstream

Detects file creation events with filename patterns used by Impacket.

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1003.001 OS Credential Dumping: LSASS Memory

Event coverage

ProviderEvent IDTitle
Sysmon11FileCreate

Stages and Predicates

Stage 1: selection_names_re

TargetFilename|re: '\\sessionresume_[a-zA-Z]{8}$'

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
TargetFilenameregex_match
  • \\sessionresume_[a-zA-Z]{8}$