Detection rules › Sigma

Remote Access Tool - ScreenConnect Temporary File

Severity
low
Author
Ali Alwashali
Source
upstream

Detects the creation of files in a specific location by ScreenConnect RMM. ScreenConnect has feature to remotely execute binaries on a target machine. These binaries will be dropped to ":\Users<username>\Documents\ConnectWiseControl\Temp" before execution.

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1059.003 Command and Scripting Interpreter: Windows Command Shell

Event coverage

ProviderEvent IDTitle
Sysmon11FileCreate

Stages and Predicates

Stage 1: selection

Image|endswith: '\ScreenConnect.WindowsClient.exe'
TargetFilename|contains: '\Documents\ConnectWiseControl\Temp\'

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
  • \ScreenConnect.WindowsClient.exe
TargetFilenamematch
  • \Documents\ConnectWiseControl\Temp\