APT group HoneyMyte upgrades CoolClient: the backdoor gets a kernel-level Windows rootkit

2026-08-20T08:51:46Z00d48653879aea06c9de40e8fd16e65c90a670005d6fd8cd506d841930ba0026
APTAiTMArmored-LikhoCentral-AsiaCoolClientDNS-tunnelingGoogle-Apps-Script-C2Head-MareHoneyMyteKerberoastingMFA-bypassPhantomCorePhantomGraphStill-ToolkitTelegram-theftTrueConfWindowscloud-phishingcredential-theftcyber-espionagekernel-rootkitkeyloggingnetwork-discoveryservice-workersunpatched-vulnerability

What happened

Kaspersky Securelist reporting highlights multiple 2026 cyber-espionage and malware campaigns, including HoneyMyte’s CoolClient kernel-level rootkit, Armored Likho’s Telegram-stealing Still Toolkit, Head Mare exploitation of unpatched TrueConf servers, Project CAV3RN’s Google Apps Script and DNS-based C2, MFA-bypass phishing hosted on legitimate cloud platforms, and tailored Central Asian backdoors capable of credential theft, network discovery, shells, and keylogging. The feed also includes broader threat-statistics and defensive-analysis reports.

Why it matters

A reviewed impact interpretation has not been published for this record.

Evidence and limitations

Source ID
kaspersky_securelist
Record identifier
00d48653879aea06c9de40e8fd16e65c90a670005d6fd8cd506d841930ba0026
Enrichment time
2026-08-20T08:51:46Z
AI-assisted enrichment
Yes

This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.

Record · APT group HoneyMyte upgrades CoolClient: the backdoor gets a kernel-level Windows rootkit · Baitaphish