Sigma rule: Lazarus Group Activity

Rule

Title

Lazarus Group Activity

Status

test

Level

critical

Author

Florian Roth (Nextron Systems), wagga

Date

2020-12-23

Modified

2023-03-10

File

rules-emerging-threats/2020/TA/Lazarus/proc_creation_win_apt_lazarus_group_activity.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects different process execution behaviors as described in various threat reports on Lazarus group activity

Log source

product

windows

category

process_creation

Detection

selection_generic:
    CommandLine|contains:
        - 'reg.exe save hklm\sam %temp%\~reg_sam.save'
        - '1q2w3e4r@#$@#$@#$'
        - ' -hp1q2w3e4 '
        - '.dat data03 10000 -p '
selection_netstat:
    CommandLine|contains|all:
        - 'netstat -aon | find '
        - 'ESTA'
        - ' > %temp%\~'
# Network share discovery
selection_network_discovery:
    CommandLine|contains|all:
        - '.255 10 C:\ProgramData\IBM\'
        - '.DAT'
selection_persistence:
    CommandLine|contains|all:
        - ' /c '
        - ' -p 0x'
    CommandLine|contains:
        - 'C:\ProgramData\'
        - 'C:\RECYCLER\'
selection_rundll32:
    CommandLine|contains|all:
        - 'rundll32 '
        - 'C:\ProgramData\'
    CommandLine|contains:
        - '.bin,'
        - '.tmp,'
        - '.dat,'
        - '.io,'
        - '.ini,'
        - '.db,'
condition: 1 of selection_*

False positives (as the rule lists them)

• Unlikely

Tags

• attack.g0032
• attack.execution
• attack.t1059
• detection.emerging-threats

MITRE ATT&CK ids this rule names

• G0032
• T1059

Related rules

• 7b49c990-4a9a-4e65-ba95-47c9cc448f6e (obsolete)

References

• https://securelist.com/lazarus-covets-covid-19-related-intelligence/99906/
• https://www.hvs-consulting.de/lazarus-report/

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2020/TA/Lazarus/proc_creation_win_apt_lazarus_group_activity.yml