MalwareUsed by 1 actor

ZEROLOT

ZEROLOT is a destructive data-wiping malware family associated with the Russia-aligned Sandworm threat group (also tracked as APT44, Voodoo Bear, Iron Viking, Telebots, and Seashell Blizzard). Reporting in the provided content links ZEROLOT to Sandworm operations against Ukrainian targets in 2024–2025, including a Ukrainian university and organizations in the government, energy, logistics, telecom, and grain sectors. Multiple sources in the content describe the malware as a wiper intended to permanently erase data and disrupt operations, with attacks framed as part of broader destructive campaigns against Ukraine’s critical infrastructure and economy. The content states that Sandworm deployed ZEROLOT via Active Directory Group Policy, and in one April 2025 university intrusion the deployment was executed using a Windows scheduled task named DavaniGulyashaSdeshka. ZEROLOT is repeatedly mentioned alongside another Sandworm wiper, Sting. High-confidence context in the content places ZEROLOT among Sandworm’s broader set of destructive malware families, alongside PathWiper and HermeticWiper. No file hashes or standalone technical IoCs specific to ZEROLOT are provided in the content beyond the scheduled task name DavaniGulyashaSdeshka and the reported use of Active Directory Group Policy for deployment.

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THREAT ACTORS

Groups observed using it

1 distinct threat actor attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.

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Sandworm

Indicators of Compromise (IoCs):- ... Malware ZEROLOT Wiper malware linked to Sandworm

via cyber security newscybersecuritynews.com

MITRE ATT&CK

Techniques & procedures

1 distinct technique documented for this family, organized by ATT&CK tactic.

Impact

1 technique

T1485Data DestructionEvidence3

Several intrusions led to the deployment of destructive wiper malware... Malware ZEROLOT Wiper malware linked to Sandworm Malware PathWiper Wiper malware targeting Ukrainian organizations

ACTIVITY FEED

Recent activity

16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

16 SOURCESView more in app

cyber security newsNews

May 22, 2026

Russian Threat Groups Use RDP, VPN, Supply Chain Attacks, and Social Engineering for Initial Access

Wiper malware linked to Sandworm.

rescana blogNews

Jan 25, 2026

Sandworm’s DynoWiper Attack Targeting Polish Combined Heat and Power and Renewable Energy Management Systems: Incident Analysis and Lessons Learned

Destructive malware family referenced as used in wiper attacks.

the hacker newsNews

Jan 24, 2026

New DynoWiper Malware Used in Attempted Sandworm Attack on Polish Power Sector

Data-wiping malware used by Sandworm in a Ukrainian university network.

risky biz rssNews

Nov 7, 2025

Risky Bulletin: Europol arrests payment service executives for role in credit card fraud ring

ZEROLOT is a destructive data wiper malware used by the Sandworm group to target Ukrainian organizations, aiming to destroy data and disrupt operations.

+12 more in the timeline

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Threat actor attribution1

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities

CVEs this family uses for access and lateral movement.

Detection signatures

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MITRE ATT&CK mapping1

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.