PolyVice
PolyVice is a ransomware family attributed in the provided content to the Vice Society ransomware-as-a-service operation, also known as DEV-0832 and Vanilla Tempest. The content states that Vice Society has historically delivered third-party lockers including Hello Kitty, Zeppelin, RedAlert, and Rhysida. Beginning in May 2025, the pro-Ukrainian threat group Bearlyfy, also known as Labubu, used a modified or slightly modified version of PolyVice in some attacks. Those campaigns targeted Russian companies as part of Bearlyfy operations assessed as combining financially motivated ransomware extortion with sabotage. In the described intrusions, Bearlyfy reportedly obtained initial access by exploiting external services and vulnerable applications, used MeshAgent for remote access, and then leveraged access to enable encryption, destruction, or modification of victim data. The content does not provide PolyVice-specific technical indicators or detailed encryption behavior beyond its use as ransomware in these attacks.
Hunt this family in your stack
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Groups observed using it
2 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
Beginning May 2025, Bearlyfy actors also utilized a modified version of PolyVice, a ransomware family attributed to Vice Society.
Beginning May 2025, Bearlyfy actors also utilized a modified version of PolyVice, a ransomware family attributed to Vice Society.
Techniques & procedures
1 distinct technique documented for this family, organized by ATT&CK tactic.
Recent activity
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A ransomware family, used in modified form by Bearlyfy, and attributed in the article to Vice Society.
A slightly modified version of the PolyVice ransomware was used in some Bearlyfy attacks beginning in May 2025; it is described as part of the Vice Society RaaS program.
The version that knows your environment.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.