MalwareRansomwareUsed by 2 actors

HavocKiller

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

THREAT ACTORS

Groups observed using it

2 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.

View more details

The Gentlemen

The group also incorporates third-party or leaked tools named HexKiller, ThrottleBlood and HavocKiller.

via bank info securitybankinfosecurity.com

Gentlemen

HavocKiller surfaced publicly through Huntress on March 19, 2026, and ESET telemetry places its use in real intrusions back to at least January 23, 2026.

via help net securityhelpnetsecurity.com

MITRE ATT&CK

Techniques & procedures

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

Stealth

3 techniques

T1027.002Software PackingEvidence1

Many samples also receive commercial packing through Enigma or Themida, recorded in a filename suffix.

T1036MasqueradingEvidence2

These tools are standardized through a shared defense-evasion layer, impersonating predominantly security vendors using fake version information... The overarching defense-evasion strategy includes ... spoofing trusted vendors' identities

T1070.004File DeletionEvidence1

The core of the suite is GentleKiller... each one impersonating a different legitimate product and abusing a different vulnerable or malicious kernel driver. ... The general target set spans more than 400 process names linked to 48 security products.

Defense Impairment

1 technique

T1553.002Code SigningEvidence1

These tools are standardized through a shared defense-evasion layer ... and copied through legitimate certificates and icons

Other

1 technique

T1562Impair DefensesEvidence2

The Gentlemen Ransomware Gang Standardizes EDR Killing ... researchers who found that the extortionists have turned EDR killing into a tactical advantage.

ACTIVITY FEED

Recent activity

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

2 SOURCESView more in app

help net securityNews

Jun 18, 2026

GentleKiller targets more than 400 security processes across 48 products - Help Net Security

An externally sourced EDR-killer tool later standardized by Gentlemen to match its own toolset. It was publicly disclosed in March 2026 but had been used in real intrusions since at least January 23, 2026.

bank info securityNews

Jun 18, 2026

The Gentlemen Ransomware Gang Standardizes EDR Killing

A third-party or leaked EDR-killing tool incorporated into The Gentlemen ransomware group's standardized defense-evasion toolkit.

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.

Start free trial

IOC matching

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

Threat actor attribution2

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 mapping5

Every documented technique, ranked by evidence weight.

Researcher chatter

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