Detection rules › Sigma

Potential Binary Proxy Execution Via VSDiagnostics.EXE

Severity
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects execution of "VSDiagnostics.exe" with the "start" command in order to launch and proxy arbitrary binaries.

MITRE ATT&CK coverage

TacticTechniques
Defense EvasionT1218 System Binary Proxy Execution

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation

Stages and Predicates

Stage 1: all of selection_img

or:
Image|endswith: '\VSDiagnostics.exe'
OriginalFileName: VSDiagnostics.exe

Stage 2: all of selection_cli_start

CommandLine|contains: start

Stage 3: all of selection_cli_launch

or:
CommandLine|contains: ' -launch:'
CommandLine|contains: ' /launch:'

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
  • -launch:
  • /launch:
  • start corpus 6 (sigma 6)
Imageends_with
  • \VSDiagnostics.exe
OriginalFileNameeq
  • VSDiagnostics.exe