3am ransomware group
3am 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 17h ago.
Who they are
3AM, also known as ThreeAM, is a relatively new ransomware family that emerged in late 2023, initially deployed as a fallback option when LockBit infections failed. Written in Rust for 64-bit systems, it appends the “.threeamtime” extension to encrypted files and tags them with the marker “0x666,” while deleting Volume Shadow Copies to hinder recovery. 3AM operators use a double extortion strategy, combining file encryption with data theft and threats to leak stolen information. More recent campaigns have shown increased sophistication, incorporating email bombing followed by vishing calls to convince victims to grant remote access via Microsoft Quick Assist. Attackers then deploy virtual machines containing backdoors, allowing them to remain undetected while exfiltrating data before attempting to launch the ransomware payload.
Current status
3am's leak site is answering our checks. That does not mean the group is actively posting — plenty of sites stay up for months with nothing new on them — but the infrastructure is live.
The last change we recorded on it was 17h ago (4 Sep 2026 19:31 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
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.
Leak site capture
Watching for your name
If 3am 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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