Detection rules › Sigma

Potential AVKkid.DLL Sideloading

Status
test
Severity
medium
Log source
product windows, category image_load
Author
X__Junior (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects potential DLL sideloading of "AVKkid.dll"

MITRE ATT&CK coverage

Event coverage

ProviderEventTitle
SysmonEvent ID 7Image loaded

Rule body yaml

title: Potential AVKkid.DLL Sideloading
id: 952ed57c-8f99-453d-aee0-53a49c22f95d
status: test
description: Detects potential DLL sideloading of "AVKkid.dll"
references:
    - https://research.checkpoint.com/2023/beyond-the-horizon-traveling-the-world-on-camaro-dragons-usb-flash-drives/
author: X__Junior (Nextron Systems)
date: 2023-08-03
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    category: image_load
    product: windows
detection:
    selection:
        ImageLoaded|endswith: '\AVKkid.dll'
    filter_main_legit_path:
        Image|contains:
            - 'C:\Program Files (x86)\G DATA\'
            - 'C:\Program Files\G DATA\'
        Image|endswith: '\AVKKid.exe'
        ImageLoaded|startswith:
            - 'C:\Program Files (x86)\G DATA\'
            - 'C:\Program Files\G DATA\'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Unknown
level: medium

Stages and Predicates

Stage 0: condition

selection and not 1 of filter_main_*

Stage 1: selection

selection:
    ImageLoaded|endswith: '\AVKkid.dll'

Stage 2: not filter_main_legit_path

filter_main_legit_path:
    Image|contains:
        - 'C:\Program Files (x86)\G DATA\'
        - 'C:\Program Files\G DATA\'
    Image|endswith: '\AVKKid.exe'
    ImageLoaded|startswith:
        - 'C:\Program Files (x86)\G DATA\'
        - 'C:\Program Files\G DATA\'

Exclusions

Top-level NOT(...) conjuncts: predicates this rule actively suppresses.

FieldKindExcluded values
ImagematchC:\Program Files (x86)\G DATA\
ImagematchC:\Program Files\G DATA\
ImageLoadedstarts_withC:\Program Files (x86)\G DATA\
ImageLoadedstarts_withC:\Program Files\G DATA\
Imageends_with\AVKKid.exe

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
ImageLoadedends_with
  • \AVKkid.dll