Detection rules › Sigma

Suspicious File Creation Activity From Fake Recycle.Bin Folder

Severity
high
Author
X__Junior (Nextron Systems)
Source
upstream

Detects file write event from/to a fake recycle bin folder that is often used as a staging directory for malware

Event coverage

ProviderEvent IDTitle
Sysmon11FileCreate

Stages and Predicates

Stage 1: selection

or:
Image|contains: 'RECYCLER.BIN\'
Image|contains: 'RECYCLERS.BIN\'
TargetFilename|contains: 'RECYCLER.BIN\'
TargetFilename|contains: 'RECYCLERS.BIN\'

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
Imagematch
  • RECYCLER.BIN\ corpus 2 (sigma 2)
  • RECYCLERS.BIN\ corpus 2 (sigma 2)
TargetFilenamematch
  • RECYCLER.BIN\
  • RECYCLERS.BIN\