Emerging Threathightest

Lazarus System Binary Masquerading

Detects binaries used by the Lazarus group which use system names but are executed and launched from non-default location

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Launch

Trent Liffick, Bartlomiej CzyzCreated Wed Jun 03Updated Fri Mar 103f7f5b0b-5b16-476c-a85f-ab477f6dd24b2017

Emerging Threat

Active Threat

Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.

Log Source

WindowsProcess Creation

ProductWindows← raw: windows

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

detection:
    selection:
        Image|endswith:
            - '\msdtc.exe'
            - '\gpsvc.exe'
    filter:
        Image|startswith:
            - 'C:\Windows\System32\'
            - 'C:\Windows\SysWOW64\'
    condition: selection and not filter