Detection rules › Sigma

Suspicious File Characteristics Due to Missing Fields

Severity
medium
Author
Markus Neis, Sander Wiebing
Source
upstream

Detects Executables in the Downloads folder without FileVersion,Description,Product,Company likely created with py2exe

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1059.006 Command and Scripting Interpreter: Python

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation

Stages and Predicates

Stage 1: selection1

Description: '\?'
FileVersion: '\?'

Stage 2: selection2

Description: '\?'
Product: '\?'

Stage 3: selection3

Company: '\?'
Description: '\?'

Stage 4: folder

Image|contains: '\Downloads\'

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
Companyeq
  • \?
Descriptioneq
  • \?
FileVersioneq
  • \?
Imagematch
  • \Downloads\ corpus 8 (sigma 8)
Producteq
  • \?