Sigma rule: Abusable DLL Potential Sideloading From Suspicious Location

Rule

Title

Abusable DLL Potential Sideloading From Suspicious Location

Status

test

Level

high

Author

X__Junior (Nextron Systems)

Date

2023-07-11

File

rules/windows/image_load/image_load_side_load_abused_dlls_susp_paths.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential DLL sideloading of DLLs that are known to be abused from suspicious locations

Log source

product

windows

category

image_load

Detection

selection_dll:
    ImageLoaded|endswith:
        # Note: Add more generic DLLs that cannot be pin-pointed to a single application
        - '\coreclr.dll'
        - '\facesdk.dll'
        - '\HPCustPartUI.dll'
        - '\libcef.dll'
        - '\ZIPDLL.dll'
selection_folders_1:
    ImageLoaded|contains:
        - ':\Perflogs\'
        - ':\Users\Public\'
        - '\Temporary Internet'
        - '\Windows\Temp\'
selection_folders_2:
    - ImageLoaded|contains|all:
          - ':\Users\'
          - '\Favorites\'
    - ImageLoaded|contains|all:
          - ':\Users\'
          - '\Favourites\'
    - ImageLoaded|contains|all:
          - ':\Users\'
          - '\Contacts\'
    - ImageLoaded|contains|all:
          - ':\Users\'
          - '\Pictures\'
condition: selection_dll and 1 of selection_folders_*

False positives (as the rule lists them)

• Unknown

Tags

• attack.execution
• attack.t1059

MITRE ATT&CK ids this rule names

• T1059

References

• https://www.trendmicro.com/en_us/research/23/f/behind-the-scenes-unveiling-the-hidden-workings-of-earth-preta.html
• https://research.checkpoint.com/2023/beyond-the-horizon-traveling-the-world-on-camaro-dragons-usb-flash-drives/

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_abused_dlls_susp_paths.yml