Leak site not responding

Crazyhunter Team ransomware group

Crazyhunter Team is one of the extortion operations we watch continuously. This page covers what is known about the group and the current state of its leak site, which we last saw change 1y ago.

Leak site statusOfflinenot answering

Tracked since—no dated record

Last activity1y ago3 Apr 2025 07:14 UTC

Sectors observed—none stated

Who they are

CrazyHunter is a rising ransomware threat first detected in early 2025, with particularly dangerous campaigns targeting Taiwanese critical infrastructure sectors such as healthcare, education, manufacturing, and industrial services. Technically sophisticated, its toolkit is composed of approximately 80% open-source tools, including the Prince Ransomware Builder (for encryption), ZammoCide (for defense evasion via BYOVD techniques), and SharpGPOAbuse (enabling lateral movement via Group Policy). In a notable incident like the February attack on Mackay Memorial Hospital, attackers employed a USB-based infection vector, then escalated privileges using vulnerable signed drivers (e.g., zam64.sys) to disable security defenses. The ransomware appends extensions like .Hunted3 and displays “Decryption Instructions.txt” as ransom notes. The group maintains a data leak site where it publicly claims multiple Taiwanese organizations as victims.

Descriptions are compiled from public reporting and vendor research. They describe how a group has historically operated and can lag its current behaviour; the status and timings above are our own.

Current status

Crazyhunter Team's leak site is not answering. Sites go dark for infrastructure trouble, a deliberate quiet period, or a takedown, and a good number return weeks later under the same name, so the entry stays on the list either way.

The last change we recorded on it was 1y ago (3 Apr 2025 07:14 UTC).

Which organisations this group has named, and when, is part of the SINON platform rather than this page. Create an account to search it, or to be told automatically if a name you care about turns up.

Sectors targeted

Industries this group has been observed going after, most common first.

This group does not state an industry on its site, so we have nothing reliable to report. Most crews are opportunistic rather than sector-specific in any case — they hit what they can reach.

Watching for your name

If Crazyhunter Team posts your company, a supplier or a subsidiary, you want to hear it from us rather than from a journalist. SINON checks these sites continuously and alerts on the names you give it.

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