Sigma rule: Diamond Sleet APT DLL Sideloading Indicators

Rule

Title

Diamond Sleet APT DLL Sideloading Indicators

Status

test

Level

high

Author

Nasreddine Bencherchali (Nextron Systems)

Date

2023-10-24

File

rules-emerging-threats/2023/TA/Diamond-Sleet/image_load_apt_diamond_sleet_side_load.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects DLL sideloading activity seen used by Diamond Sleet APT

Log source

product

windows

category

image_load

Detection

selection_1:
    Image|endswith: ':\ProgramData\clip.exe'
    ImageLoaded|endswith: ':\ProgramData\Version.dll'
selection_2:
    Image|endswith: ':\ProgramData\wsmprovhost.exe'
    ImageLoaded|endswith: ':\ProgramData\DSROLE.dll'
condition: 1 of selection_*

False positives (as the rule lists them)

• Unlikely

Tags

• attack.persistence
• attack.privilege-escalation
• attack.execution
• attack.stealth
• attack.t1574.001
• detection.emerging-threats

MITRE ATT&CK ids this rule names

• T1574.001

References

• https://www.microsoft.com/en-us/security/blog/2023/10/18/multiple-north-korean-threat-actors-exploiting-the-teamcity-cve-2023-42793-vulnerability/

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/2023/TA/Diamond-Sleet/image_load_apt_diamond_sleet_side_load.yml