Leak site not responding

Arcrypter ransomware group

Arcrypter 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.

Leak site statusOfflinenot answering

Tracked since—no dated record

Last activity—nothing recorded

Sectors observed—none stated

Who they are

ArcRypt (also known as ARCrypter or ChileLocker) was first identified in August 2022, originally targeting government entities in Latin America and subsequently expanding globally. The group employs a single-extortion model—there is no evidence of a data-leak threat or RaaS ecosystem. The malware encrypts files using extensions such as .crypt, .crYpt, and .crYptA3, and uniquely drops the ransom note before commencing encryption. It has variants for both Windows and Linux, including a Go-based Linux version. Communication with victims occurs via Tor-based portals, evolving over time from a single shared site to individualized mirror sites for each victim. In some cases, threat actors have instructed victims to contact them using Tox, creating a Tox profile for communication. Targets have included Chile’s government infrastructure, Colombia’s Invima agency, and organizations in China and Canada.

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

Arcrypter'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.

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 Arcrypter 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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