MalwareRansomwareUsed by 1 actor

OxideHarvest

For your environment

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THREAT ACTORS

Groups observed using it

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

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Gentlemen

We also detected several deployments of a tool we named OxideHarvest, a credential stealer written in Rust... we found an OxideHarvest sample named buildx641.exe uploaded to VirusTotal; we conclude that buildx641 and OxideHarvest are the same tool.

via eset welivesecurity blogwelivesecurity.com

MITRE ATT&CK

Techniques & procedures

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

Stealth

2 techniques

T1027Obfuscated Files or InformationEvidence1

MITRE ATT&CK techniques ... T1027 Obfuscated Files or Information Some executables are protected with packers (e.g., Enigma, Themida) and custom control-flow obfuscation.

T1036MasqueradingEvidence1

MITRE ATT&CK techniques ... T1036 Masquerading Gentlemen’s EDR killers are protected by impersonating legitimate vendors through filenames, version information, icons, and copied digital certificates.

Credential Access

1 technique

T1003OS Credential DumpingEvidence1

Additionally, ESET documented the use of OxideHarvest, a Rust-based credential-stealer tool...

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

eset welivesecurity blogNews

Jun 18, 2026

Killing me gently: Inside Gentlemen’s EDR killer framework

A Rust-based credential stealer linked to a Gentlemen affiliate rather than the operators themselves. It takes host and credential parameters, logs into specified hosts using supplied credentials, and exfiltrates harvested credentials to an output file.

bleeping computerNews

Jun 18, 2026

Gentlemen ransomware uses multiple EDR killers to disable defenses

A Rust-based credential stealer used by the Gentlemen operation, likely developed externally, for harvesting credentials during intrusions.

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 attribution1

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 mapping3

Every documented technique, ranked by evidence weight.

Researcher chatter

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