MalwareRansomware

ServiceMouse.sys

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MITRE ATT&CK

Techniques & procedures

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

Persistence

1 technique

T1543.003Windows ServiceEvidence1

It installs a service (ServiceMouse) and uses specific IO control codes to terminate processes, delete files, or uninstall drivers

Privilege Escalation

2 techniques

T1068Exploitation for Privilege EscalationEvidence1

VMToolsEng.exe, a custom antivirus killer using a BYOVD tactic. It abuses ServiceMouse.sys, a signed driver from Chinese vendor Antiy Labs, to disable security tools.

T1543.003Windows ServiceEvidence1

It installs a service (ServiceMouse) and uses specific IO control codes to terminate processes, delete files, or uninstall drivers

Other

1 technique

T1562Impair DefensesEvidence1

The group employed a key tool named Antivirus Terminator ... leveraging a signed Antiy Labs driver to kill processes. It installs a service (ServiceMouse) and uses specific IO control codes to terminate processes, delete files, or uninstall drivers

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

picus security blogNews

Oct 22, 2025

Storm-2603 Ransomware Campaign Targets Microsoft SharePoint in 2025: Activity and TTP Analysis

A vulnerable kernel driver abused to disable security products and facilitate ransomware deployment.

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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 mapping3

Every documented technique, ranked by evidence weight.

Researcher chatter

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