Adkdllwrapper

Overview

Trojan:Win32/Adkdllwrapper is a persistent, stealthy trojan (often associated with wrapping adware or secondary payloads) designed to breach endpoint defenses and securely deliver its payload.

Understanding Adkdllwrapper
To an end-user, an Adkdllwrapper infection is typically invisible until the secondary payload executes (often manifesting as aggressive adware or a browser hijacker). For threat intelligence analysts, this wrapper is a critical staging mechanism. It utilizes DLL side-loading or injection techniques to securely bypass endpoint defenses and ensure the successful execution of its bundled payload.

Execution and Evasion Strategies
Adkdllwrapper is commonly distributed via deceptive software bundlers or exploit kits. Upon execution, it utilizes heavy packing and dynamic API resolution to evade static antivirus signatures. Its defining characteristic is its use of DLL wrapper techniques (`T1574.001`)—often replacing legitimate system DLLs with malicious proxies, or injecting its payload into legitimate processes (`T1055`) to mask its execution. It establishes persistence by modifying the Registry Run keys or utilizing COM hijacking.

Indicators of Compromise (IoCs)
Threat hunters should investigate EDR alerts related to 'Suspicious Process Injection' or the loading of unsigned DLLs by core system processes. Network logs will often reveal the wrapper reaching out to compromised domains to pull down the final payload. Memory analysis is necessary to extract the injected modules and determine what payloads were executed.

MITRE ATT&CK Techniques

Observed techniques used by this family, mapped to the MITRE ATT&CK framework:

Generated Detections (Boilerplate)

These YARA and Sigma rules are auto-generated based on the family name and aliases. They must be heavily tuned before deployment in a production environment.

YARA Rule

rule MALWARE_WIN_ADKDLLWRAPPER {
    meta:
        description = "Detects Adkdllwrapper (trojan)"
        author = "SystemHelpdesk Boilerplate Generator"
        date = "2026-07-06"
    strings:
        $s1 = "adkdllwrapper" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

Sigma Rule

title: Suspicious Adkdllwrapper Activity
id: d2552eb3d60fcda47ad70cfe5494da10
status: experimental
description: Detects generic indicators of the adkdllwrapper malware family.
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
        CommandLine|contains:
            - "*adkdllwrapper*"
    condition: selection
level: medium

Containment & Response Steps

Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.

1. Isolate the endpoint immediately to prevent the wrapper from downloading and executing its secondary payloads.
2. Audit the Windows Registry (specifically looking for COM hijacking or Run keys) to identify and remove the persistence mechanisms.
3. Review firewall logs to identify the C2 domains the wrapper attempted to contact.
4. Capture a live memory image (RAM dump) to extract the injected modules and identify the secondary payloads.

What to Avoid

Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.

1. Do not close an incident simply because the initial wrapper was quarantined; always verify if secondary payloads were deployed.
2. Avoid relying solely on manual file deletion, as injected processes will likely recreate the dropped binaries.

References & External Analysis

• Search "adkdllwrapper" on VirusTotal (External Analysis)

Frequently Asked Questions

Related Families (Category: trojan)

Explore other malware families in the same category:

• Elemental
• Hkautoit
• Bancos
• Trjgen
• Perfectoptimizer

Machine-readable

Get this profile as JSON: https://jordanricky1604-ship-it.github.io/malware-families-catalog/api/adkdllwrapper.json

Ecosystem & Interactive Environments

This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.