LiveActive security incident?Get immediate response
MITRE ATT&CK® Malware

S0257: VERMIN

VERMIN is a remote access tool written in the Microsoft .NET framework. It is mostly composed of original code, but also has some open source code. [1]

EnterpriseS0257MalwareObject v1.2Modified
Discuss defensive coverageBack to ATT&CK
Glexia's Take · Automated analysis

Security context for executives and security teams

Automation confidenceMedium

S0257: VERMIN describes [VERMIN](https://attack.mitre.org/software/S0257) is a remote access tool written in the Microsoft .NET framework. It is mostly composed of original code, but also has some open source code. (Citation: Unit 42 VERMIN Jan 2018)

Executive priority

S0257: VERMIN is an official MITRE ATT&CK software. Glexia treats it as defensive behavior context for prioritizing monitoring, control validation, and response planning without using the object by itself as an attribution claim.

Technical view

Security teams should validate S0257: VERMIN by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (Windows), and available local telemetry before making detection or mitigation decisions.

Likely telemetry

  • Official ATT&CK relationships and object metadata
  • Network, endpoint, and security-tool telemetry

Detection direction

  • Validate whether S0257: VERMIN appears in your detection coverage and tabletop scenarios.
  • Use the object to align executive risk language with SOC, incident response, and detection engineering work.
  • Do not treat ATT&CK relationship context as attribution without corroborating evidence.

Mitigation priorities

  • Map the object to existing controls and identify missing telemetry or response ownership.
  • Prioritize mitigations that reduce exposure on the listed platforms and tactics.
  • Review adjacent ATT&CK relationships before changing policy, detections, or reporting language.
Additional notes and limits

Baseline Glexia take generated from the official MITRE ATT&CK STIX object, source hash, tactics, platforms, and detection fields. It is safe to replace with a richer model-generated take for the same source hash later.

This baseline take is source-grounded and schema-validated, but it does not include environment-specific telemetry, incident evidence, or threat-intelligence corroboration.

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Official MITRE ATT&CK definition

VERMIN

VERMIN is a remote access tool written in the Microsoft .NET framework. It is mostly composed of original code, but also has some open source code. [1]

View the same entry on attack.mitre.org (MITRE-hosted reference; in-page links above use the Glexia ATT&CK library.)

Glexia analysis

How security teams should use this page

Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.

ATT&CK relationship table

Techniques used

This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.

17 rows
DomainIDNameRelationship / procedure
EnterpriseT1016System Network Configuration Discovery

VERMIN gathers the local IP address.[1]

EnterpriseT1027.002Software PackingSub-technique

VERMIN is initially packed.[1]

EnterpriseT1071.001Web ProtocolsSub-technique

VERMIN uses HTTP for C2 communications.[1]

EnterpriseT1123Audio Capture

VERMIN can perform audio capture.[1]

EnterpriseT1070.004File DeletionSub-technique

VERMIN can delete files on the victim’s machine.[1]

EnterpriseT1056.001KeyloggingSub-technique

VERMIN collects keystrokes from the victim machine.[1]

EnterpriseT1518.001Security Software DiscoverySub-technique

VERMIN uses WMI to check for anti-virus software installed on the system.[1]

EnterpriseT1115Clipboard Data

VERMIN collects data stored in the clipboard.[1]

EnterpriseT1140Deobfuscate/Decode Files or Information

VERMIN decrypts code, strings, and commands to use once it's on the victim's machine.[1]

EnterpriseT1119Automated Collection

VERMIN saves each collected file with the automatically generated format {0:dd-MM-yyyy}.txt .[1]

EnterpriseT1560Archive Collected Data

VERMIN encrypts the collected files using 3-DES.[1]

EnterpriseT1113Screen Capture

VERMIN can perform screen captures of the victim’s machine.[1]

EnterpriseT1027.013Encrypted/Encoded FileSub-technique

VERMIN is obfuscated using the obfuscation tool called ConfuserEx.[1]

EnterpriseT1105Ingress Tool Transfer

VERMIN can download and upload files to the victim's machine.[1]

EnterpriseT1033System Owner/User Discovery

VERMIN gathers the username from the victim’s machine.[1]

EnterpriseT1082System Information Discovery

VERMIN collects the OS name, machine name, and architecture information.[1]

EnterpriseT1057Process Discovery

VERMIN can get a list of the processes and running tasks on the system.[1]

Relationship explorer

All related ATT&CK context

uses · TechniqueT1016: System Network Configuration DiscoveryEnterpriseuses · TechniqueT1027.002: Software PackingEnterpriseuses · TechniqueT1071.001: Web ProtocolsEnterpriseuses · TechniqueT1123: Audio CaptureEnterpriseuses · TechniqueT1070.004: File DeletionEnterpriseuses · TechniqueT1056.001: KeyloggingEnterpriseuses · TechniqueT1518.001: Security Software DiscoveryEnterpriseuses · TechniqueT1115: Clipboard DataEnterpriseuses · TechniqueT1140: Deobfuscate/Decode Files or InformationEnterpriseuses · TechniqueT1119: Automated CollectionEnterpriseuses · TechniqueT1560: Archive Collected DataEnterpriseuses · TechniqueT1113: Screen CaptureEnterpriseuses · TechniqueT1027.013: Encrypted/Encoded FileEnterpriseuses · TechniqueT1105: Ingress Tool TransferEnterpriseuses · TechniqueT1033: System Owner/User DiscoveryEnterpriseuses · TechniqueT1082: System Information DiscoveryEnterpriseuses · TechniqueT1057: Process DiscoveryEnterprise
Change history

Object version and sync metadata

The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates.

ATT&CK release
19.2
Object version
1.2
Created
Modified
Raw hash
b0965ecfc73f833e...
Imported snapshots across ATT&CK releases(2)
ReleaseBundle importedObject versionModifiedStatusRaw hash
19.21.2Current bundleb0965ecfc73f…
19.11.2Older bundleb0965ecfc73f…
Raw source

Mirrored ATT&CK source object

The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.

Open mirrored raw JSONOpen MITRE-hosted copy
Source references

External references and citations

MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.

  1. [1]
    Unit 42 VERMIN Jan 2018

    Lancaster, T., Cortes, J. (2018, January 29). VERMIN: Quasar RAT and Custom Malware Used In Ukraine. Retrieved July 5, 2018.

    Open source URL
  2. [2]
    VERMIN

    (Citation: Unit 42 VERMIN Jan 2018)

  3. [3]
    mitre-attackS0257
    Open source URL
Source and licensing

Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.

Official MITRE ATT&CK siteOfficial STIX data repositoryMITRE ATT&CK terms of use