Detection rules › Sigma

Suspicious Creation TXT File in User Desktop

Severity
high
Author
frack113
Source
upstream

Ransomware create txt file in the user Desktop

MITRE ATT&CK coverage

TacticTechniques
ImpactT1486 Data Encrypted for Impact

Event coverage

ProviderEvent IDTitle
Sysmon11FileCreate

Stages and Predicates

Stage 1: selection

Image|endswith: '\cmd.exe'
TargetFilename|endswith: .txt
TargetFilename|contains: '\Desktop\'
TargetFilename|contains: '\Users\'

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
  • \cmd.exe corpus 92 (sigma 92)
TargetFilenameends_with
  • .txt corpus 2 (sigma 2)
TargetFilenamematch
  • \Desktop\ corpus 3 (sigma 3)
  • \Users\ corpus 2 (sigma 2)