Black

Category: ransomware · Aliases: Blacklist.Generic, Generic.Black, Trojan.Generic.Black · Sample count (EMBER 2018): 329 · Enrichment: insufficient_information · Updated: 2026-07-01T16:03:45Z

Category: RansomwareActor: Unknown / CybercriminalIndustry: Global / OpportunisticMotivation: Opportunistic

Overview

Executive Summary

The identifier "Black" represents a generic heuristic classification used by various endpoint protection platforms (EPP). It is not a distinct, standalone malware family. Rather, it is a risk indicator often applied to files that reside on a known blacklist, contain generic malicious code snippets, or are fragmented components of larger, named families (such as BlackEnergy, Blackhole exploit kit, or BlackMatter ransomware).

Behavioral Context and Detection

When an antivirus engine flags a file with a generic "Black" label, it indicates that the file failed a reputation check or exhibited behaviors that are definitively malicious, but the engine cannot classify it further. This often happens with:

Packed Executables: Files obfuscated with custom packers where the underlying payload cannot be immediately analyzed.
Dropper Artifacts: Small, intermediary scripts (PowerShell, VBScript) used merely to download a primary payload.
Blacklisted Hashes: Files whose SHA-256 hashes exactly match entries in global threat intelligence feeds, regardless of their specific family classification.

Risk Assessment and Triage

Despite the lack of a specific family name, a "Black" detection must be treated as a confirmed, high-severity malicious event. The generic nature of the label means the threat could range from a simple adware installer to a sophisticated ransomware encryptor.

Incident Response Actions

Threat Intelligence Correlation: Extract the file hash (MD5, SHA-256) of the flagged executable and query it against external threat intelligence platforms (e.g., VirusTotal, Hybrid Analysis) to determine its true identity and capabilities.
Endpoint Isolation: Quarantining the file is insufficient; the entire endpoint should be isolated from the network to prevent potential lateral movement while the analysis is conducted.
Root Cause Analysis: Investigate the origin of the file. Determine how it arrived on the system (e.g., email attachment, web download, USB drive) to patch the initial vector of compromise.

Known aliases

Threat reports may refer to this family under multiple names:

MITRE ATT&CK Techniques

This family has been observed using the following ATT&CK techniques: T1204

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_BLACK {
    meta:
        description = "Detects Black (ransomware)"
        author = "SystemHelpdesk Boilerplate Generator"
        date = "2026-07-06"
    strings:
        $s1 = "black" ascii wide nocase
        $s2 = "blacklist.generic" ascii wide nocase
        $s3 = "generic.black" ascii wide nocase
        $s4 = "trojan.generic.black" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

Sigma Rule

title: Suspicious Black Activity
id: 1ffd9e753c8054cc61456ac7fac1ac89
status: experimental
description: Detects generic indicators of the black malware family.
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
        CommandLine|contains:
            - "*black*"
            - "*blacklist.generic*"
            - "*generic.black*"
            - "*trojan.generic.black*"
    condition: selection
level: medium

References & External Analysis

Search "black" on VirusTotal (External Analysis)

Frequently Asked Questions

How do I remove the Black Ransomware from Windows?

Manual removal of Black is highly discouraged as it may leave persistence mechanisms intact. We recommend disconnecting the device from the internet and utilizing a professional incident response service or enterprise-grade EDR software to conduct a full forensic sweep.

Is Black a virus or a Ransomware?

Black is classified as a Ransomware. Unlike traditional viruses that infect files, modern malware like Black typically operates as a standalone payload designed to compromise systems, steal data, or deploy secondary stage implants.

What are the main symptoms of a Black infection?

Symptoms of Black can include unexpected system slowness, unauthorized outbound network traffic to unknown IP addresses, disabled security software, and suspicious background processes running from AppData or Temp directories.

Related Families (Category: ransomware)

Explore other malware families in the same category:

Protect Your Network Against Ransomwares

Want to prevent Black and similar threats from compromising your organization? Read our comprehensive defensive guide: Ransomware Protection Guide.

Need help with an active incident? Published by the SystemHelpdesk team.

Machine-readable

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