Suspicious Child Process of AspNetCompiler

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About the rule

Rule Type

Standard

Rule Description

Detects potentially suspicious child processes of "aspnet_compiler.exe".

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND PARENTPROCESSNAME endswith "\aspnet_compiler.exe" AND (PROCESSNAME endswith "\calc.exe,\notepad.exe" OR PROCESSNAME contains "\Users\Public\,\AppData\Local\Temp\,\AppData\Local\Roaming\,:\Temp\,:\Windows\Temp\,:\Windows\System32\Tasks\,:\Windows\Tasks") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Nasreddine Bencherchali (Nextron Systems)