Detection rules › Sigma

Potential File Overwrite Via Sysinternals SDelete

Severity
high
Author
frack113
Source
upstream

Detects the use of SDelete to erase a file not the free space

MITRE ATT&CK coverage

TacticTechniques
ImpactT1485 Data Destruction

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation

Stages and Predicates

Stage 1: selection

OriginalFileName: sdelete.exe

Stage 2: not filter

or:
CommandLine|contains: ' -c'
CommandLine|contains: ' -h'
CommandLine|contains: ' -z'
CommandLine|contains: ' /\?'

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
CommandLinematch
  • -c corpus 4 (sigma 4)
  • -h
  • -z
  • /\?
OriginalFileNameeq
  • sdelete.exe corpus 2 (sigma 2)