Command Line
Pester.bat [/help|?|-?|/?] "$null; notepad"
Description
Abuse pester.bat to launch an arbitrary binary - in this case notepad.exe.
Risk
High
Risk Reason
Manual usage of pester.bat in this manner is typically suspicious.
Fidelity
High
Fidelity Reason
This is typically rare behavior in most organizations.
Operating Systems
Killchain Phases
References
MITRE ATT&CK TECHNIQUES
URL: https://attack.mitre.org/techniques/T1216
Description: Adversaries may use trusted scripts, often signed with certificates, to proxy the execution of malicious files. Several Microsoft signed scripts that have been downloaded from Microsoft or are default on Windows installations can be used to proxy execution of other files.(Citation: LOLBAS Project) This behavior may be abused by adversaries to execute malicious files that could bypass application control and signature validation on systems.(Citation: GitHub Ultimate AppLocker Bypass List)
Tactics: