IcedID Malware Suspicious Single Digit DLL Execution Via Rundll32
Last updated on:
In this page
About the rule
Rule Type
Standard
Rule Description
Detects RunDLL32.exe executing a single digit DLL named "1.dll" with the export function "DllRegisterServer". This behaviour was often seen used by malware and especially IcedID
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND PROCESSNAME endswith "\rundll32.exe" AND COMMANDLINE endswith "\1.dll, DllRegisterServer, 1.dll, DllRegisterServer" 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)
