5 malware families

DEV-0230

Also known asDEV-0230

DEV-0230 is a Microsoft-tracked cybercriminal ransomware affiliate described as one of the most prolific and successful Conti affiliates. Microsoft states that DEV-0230 was responsible for developing the leaked "Conti Manual" published in August 2021. The actor also developed and deployed the FiveHands and HelloKitty ransomware payloads, and later shifted to deploying QuantumLocker. Microsoft reports that DEV-0230 often gained initial access via BazaLoader. Based on the provided content, DEV-0230 operated within the broader ransomware-as-a-service ecosystem around Conti and related payloads.

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MITRE ATT&CK

Tradecraft

1 distinct technique observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.

1 of 15 tactics1 techniques×N= number of intelligence reports citing this technique

MITRE ATT&CK

TA0040

Impact

1 technique

T1486

Data Encrypted for Impact

ARSENAL

Associated malware families

5 malware families attributed to this actor across reporting.

FamilyContextEvidenceLast seen

BazarDEV-0193 is responsible for developing, distributing, and managing many different payloads, including Trickbot, Bazaloader, and AnchorDNS.1May 26, 2026

ContiBased on our telemetry from 2021 and 2022, Conti has become one of the most deployed RaaS ecosystems, with multiple affiliates concurrently deploying their payload.1May 26, 2026

FIVEHANDSOne of the most prolific and successful Conti affiliates—and the one responsible for developing the “Conti Manual” leaked in August 2021—is tracked as DEV-0230. This activity group also developed and deployed the FiveHands and HelloKitty ransomware payloads...1May 26, 2026

HELLOKITTYThis activity group also developed and deployed the FiveHands and HelloKitty ransomware payloads and often gained access to an organization via DEV-0193’s BazaLoader infrastructure.1May 26, 2026

ACTIVITY FEED

Recent activity

2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

2 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

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Target overlap

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Tradecraft mapping1

Every observed MITRE ATT&CK technique, grouped by tactic.

Malware arsenal5

Families this actor is known to deploy, with IOCs and behavior.

Exploited CVEs

CVEs this actor has used in known campaigns.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Observables

Domains, IPs, and hashes tied to this actor, refreshed continuously.