Malware

KoiVM

For your environment

Hunt this family in your stack

Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.

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MITRE ATT&CK

Techniques & procedures

2 distinct techniques documented for this family, organized by ATT&CK tactic.

Stealth

1 technique

T1497.001System ChecksEvidence1

Code virtualization is a software protection technique that works by transforming code into specialized instructions. These instructions are written in such a way that they can only be executed by the accompanying custom interpreter.

Discovery

1 technique

T1497.001System ChecksEvidence1

Command and Control

1 technique

T1105Ingress Tool TransferEvidence1

A 2023 article by K7 Labs discusses a first-stage .NET downloader that seems to be an earlier variant of samples we have observed. It contacts a command-and-control (C2) server to download a second-stage KoiVM dropper, which delivers payloads like Agent Tesla and Remcos RAT.

ACTIVITY FEED

Recent activity

1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

1 SOURCESView more in app

k7 labsNews

Dec 2, 2022

KoiVM Loader Resurfaces With a Bang - K7 Labs

KoiVM is used here as a heavily obfuscated and virtualized stage-2 dropper that protects execution flow and decodes embedded payloads for delivery of Agent Tesla or Remcos RAT.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets match these IOCs, which detections are missing, which campaigns to expect next, and what to do in the next 30 minutes.

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IOC matching

Match every observed IP, domain, and hash against your live telemetry.

Threat actor attribution

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities

CVEs this family uses for access and lateral movement.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

MITRE ATT&CK mapping2

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.

Back to malware

Malware

KoiVM

For your environment

Hunt this family in your stack

Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.

Start free trial

MITRE ATT&CK

Techniques & procedures

2 distinct techniques documented for this family, organized by ATT&CK tactic.

Stealth

1 technique

T1497.001System ChecksEvidence1

Discovery

1 technique

T1497.001System ChecksEvidence1

Command and Control

1 technique

T1105Ingress Tool TransferEvidence1

ACTIVITY FEED

Recent activity

1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

1 SOURCESView more in app

k7 labsNews

Dec 2, 2022

KoiVM Loader Resurfaces With a Bang - K7 Labs

KoiVM is used here as a heavily obfuscated and virtualized stage-2 dropper that protects execution flow and decodes embedded payloads for delivery of Agent Tesla or Remcos RAT.

What this page doesn’t show

The version that knows your environment.

Start free trial

IOC matching

Match every observed IP, domain, and hash against your live telemetry.

Threat actor attribution

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities

CVEs this family uses for access and lateral movement.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

MITRE ATT&CK mapping2

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.