Detection rules › Sigma

Renamed Mavinject.EXE Execution

Severity
high
Author
frack113, Florian Roth
Source
upstream

Detects the execution of a renamed version of the "Mavinject" process. Which can be abused to perform process injection using the "/INJECTRUNNING" flag

MITRE ATT&CK coverage

TacticTechniques
Privilege EscalationT1055.001 Process Injection: Dynamic-link Library Injection
Defense EvasionT1055.001 Process Injection: Dynamic-link Library Injection, T1218.013 System Binary Proxy Execution: Mavinject

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation

Stages and Predicates

Stage 1: selection

OriginalFileName: [mavinject32.exe, mavinject64.exe]

Stage 2: not filter

or:
Image|endswith: '\mavinject32.exe'
Image|endswith: '\mavinject64.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
  • \mavinject32.exe
  • \mavinject64.exe
OriginalFileNameeq
  • mavinject32.exe
  • mavinject64.exe