Detection rules › Sigma

Potential SolidPDFCreator.DLL Sideloading

Severity
medium
Author
X__Junior (Nextron Systems)
Source
upstream

Detects potential DLL sideloading of "SolidPDFCreator.dll"

MITRE ATT&CK coverage

TacticTechniques
PersistenceT1574.001 Hijack Execution Flow: DLL
Privilege EscalationT1574.001 Hijack Execution Flow: DLL
Defense EvasionT1574.001 Hijack Execution Flow: DLL

Event coverage

ProviderEvent IDTitle
Sysmon7Image loaded

Stages and Predicates

Stage 1: selection

ImageLoaded|endswith: '\SolidPDFCreator.dll'

Stage 2: not 1 of filter_main_path

or:
ImageLoaded|startswith: 'C:\Program Files (x86)\SolidDocuments\SolidPDFCreator\'
ImageLoaded|startswith: 'C:\Program Files\SolidDocuments\SolidPDFCreator\'
Image|endswith: '\SolidPDFCreator.exe'

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
  • \SolidPDFCreator.exe
ImageLoadedends_with
  • \SolidPDFCreator.dll
ImageLoadedstarts_with
  • C:\Program Files (x86)\SolidDocuments\SolidPDFCreator\
  • C:\Program Files\SolidDocuments\SolidPDFCreator\