Skuggaheimar/Threat Intelligence/Vidar Stealer
VIDAR STEALER
VIDAR
INFORMATION STEALER
ECRIME
Threat IntelligenceMalwareNovember 1, 2025•15 min read

Vidar Stealer: Threat Intelligence Profile

Arkei-derived information stealer

Scroll

Vidar Stealer (also known as Vidar, Arkei fork) is a information stealer active since 2018. Arkei-derived information stealer. Key characteristics include: browser credentials, crypto wallets, 2FA, Telegram C2, dead drop resolvers, major RedLine alternative.

Overview & Background

Arkei-derived information stealer. First identified in 2018, this threat is attributed to eCrime (MaaS).

Threat Assessment

Vidar Stealer remains an active threat. Organizations should implement detection rules and monitor for indicators associated with this information stealer.

Technical Analysis

Vidar Stealer employs the following capabilities and techniques:

MITRE ATT&CK Mapping

TacticTechniqueUsage
Initial AccessT1566.001 Phishing AttachmentCommon delivery vector
ExecutionT1204.002 Malicious FileUser-triggered execution
PersistenceT1547.001 Registry Run KeysAutostart persistence
Defense EvasionT1027 Obfuscated FilesPayload obfuscation
C2T1071.001 Web ProtocolsHTTP/HTTPS C2

Detection & Defense

Defend Against Vidar Stealer

Mjolnir Security provides detection and response capabilities against Vidar Stealer and similar threats.

Threat DetectionIncident ResponseThreat HuntingMDR ServicesThreat Intelligence
  • Proactive Threat Hunting Hunt for Vidar Stealer indicators and TTPs within your environment.
  • Threat Intelligence Monitor Vidar Stealer campaigns and infrastructure changes.
  • 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
Written by: Mjolnir Security  |  Published: November 1, 2025
Related Reports
Malware

RedLine Stealer: The Infostealer That Fueled a Cybercrime Empire

Read Report →
Malware

Cobalt Strike: Adversary's Arsenal

Read Report →