Sigma rule: Suspicious Process Created Via Wmic.EXE

Rule

Title

Suspicious Process Created Via Wmic.EXE

Status

test

Level

high

Author

Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)

Date

2020-10-12

Modified

2023-02-14

File

rules/windows/process_creation/proc_creation_win_wmic_susp_process_creation.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects WMIC executing "process call create" with suspicious calls to processes such as "rundll32", "regsrv32", etc.

Log source

product

windows

category

process_creation

Detection

selection:
    CommandLine|contains|all:
        - 'process '
        - 'call '
        - 'create '
    CommandLine|contains:
        # Add more susupicious paths and binaries as you see fit in your env
        - 'rundll32'
        - 'bitsadmin'
        - 'regsvr32'
        - 'cmd.exe /c '
        - 'cmd.exe /k '
        - 'cmd.exe /r '
        - 'cmd /c '
        - 'cmd /k '
        - 'cmd /r '
        - 'powershell'
        - 'pwsh'
        - 'certutil'
        - 'cscript'
        - 'wscript'
        - 'mshta'
        - '\Users\Public\'
        - '\Windows\Temp\'
        - '\AppData\Local\'
        - '%temp%'
        - '%tmp%'
        - '%ProgramData%'
        - '%appdata%'
        - '%comspec%'
        - '%localappdata%'
condition: selection

False positives (as the rule lists them)

• Unknown

Tags

• attack.execution
• attack.t1047

MITRE ATT&CK ids this rule names

• T1047

Related rules

• 526be59f-a573-4eea-b5f7-f0973207634d (derived)

References

• https://thedfirreport.com/2020/10/08/ryuks-return/
• https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/ransomware-hive-conti-avoslocker

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_wmic_susp_process_creation.yml