Detection rules › Sigma

DumpStack.log Defender Evasion

Severity
critical
Author
Florian Roth (Nextron Systems)
Source
upstream

Detects the use of the filename DumpStack.log to evade Microsoft Defender

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation
Security-Auditing4688A new process has been created.

Stages and Predicates

Stage 1: 1 of selection

Image|endswith: '\DumpStack.log'

Stage 2: 1 of selection_download

CommandLine|contains: ' -o DumpStack.log'

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
  • -o DumpStack.log
Imageends_with
  • \DumpStack.log