Sigma rule: Potential Wazuh Security Platform DLL Sideloading

Rule

Title

Potential Wazuh Security Platform DLL Sideloading

Status

test

Level

medium

Author

X__Junior (Nextron Systems)

Date

2023-03-13

Modified

2023-05-12

File

rules/windows/image_load/image_load_side_load_wazuh.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential DLL side loading of DLLs that are part of the Wazuh security platform

Log source

product

windows

category

image_load

Detection

selection:
    ImageLoaded|endswith:
        - '\libwazuhshared.dll'
        - '\libwinpthread-1.dll'
filter_main_generic:
    ImageLoaded|startswith:
        - 'C:\Program Files\'
        - 'C:\Program Files (x86)\'
filter_optional_mingw64:
    # Note: Many third party apps installed in "AppData" or "ProgramData" and leverage "mingw64" make use of "libwinpthread-1.dll"
    # In production its best to make a list of these apps and replace this filter with a specific one.
    ImageLoaded|contains:
        - '\AppData\Local\'
        - '\ProgramData\'
    ImageLoaded|endswith: '\mingw64\bin\libwinpthread-1.dll'
condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*

False positives (as the rule lists them)

• Many legitimate applications leverage this DLL. (Visual Studio, JetBrains, Ruby, Anaconda, GithubDesktop, etc.)

Tags

• attack.persistence
• attack.privilege-escalation
• attack.execution
• attack.stealth
• attack.t1574.001

MITRE ATT&CK ids this rule names

• T1574.001

References

• https://www.trendmicro.com/en_us/research/23/c/iron-tiger-sysupdate-adds-linux-targeting.html

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/image_load/image_load_side_load_wazuh.yml