File Download Using ProtocolHandler.exe

Last updated on:

About the rule

Rule Type

Standard

Rule Description

Detects usage of "ProtocolHandler" to download files. Downloaded files will be located in the cache folder (for example - %LOCALAPPDATA%\\Microsoft\\Windows\\INetCache\\IE)

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (PROCESSNAME endswith "\protocolhandler.exe" OR ORIGINALFILENAME = "ProtocolHandler.exe") AND COMMANDLINE contains "ftp://,http://,https://" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

frack113