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Rewterz Threat Alert – LokiBot Malware – Active IOCs
December 23, 2021
Rewterz Threat Alert – Kimsuky APT Group – Active IOCs
December 23, 2021

Rewterz Threat Alert – Oski Data Stealer Malware – Active IOCs

December 23, 2021

Severity

High

Analysis Summary

An emergent and effective data-harvesting tool dubbed Oski is proliferating in North America and China, stealing online account credentials, credit card numbers, crypto wallet accounts, and more. The malware is still in its developing phase but packs a punch with its capabilities. Oski C2’s dashboard revealed that Oski’s theft tactics involve extracting credentials using man-in-the-browser (MitB) attacks by hooking the browser processes using DLL injection, It also extracts credentials from the registry, passwords from the browser SQLite database, and stored session cookies of all stripes, including crypto-wallet cookies from Bitcoin Core, Ethereum, Monero, Litecoin, and others.

Impact

  • Credential Theft
  • Unauthorized Access

Indicators of Compromise

MD5

  • c139bfdbe8ede9fc87dff8ea7ed5ca83
  • a4e54d43129a017b9e1b36ab2e979134

SHA-256

  • 2483e3d38f1856bf14e1bd86692e4ac5b3f330a52166d7708fba883a6809595b
  • 7b9e493205a6655c10fbd597de3bcea1e0d628b50831a69c723b7dbe30410633

SHA-1

  • f9af55ddd2b0949b4a78f79d95e488d92ec0929c
  • f31d2e144042a33974866a90d325e242d6af53bd

Remediation

  • Block all threat indicators at your respective controls.
  • Always be suspicious about emails sent by unknown senders.
  • Never click on the links/attachments sent by unknown senders.
  • Search for IOCs in your environment.
  • Services
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      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
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      • Red Team Assessment
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    • Respond
      • Incident Response
      • Incident Analysis
  • Transform
    • SOC Consultancy
    •     SOC Maturity Assessment
    •     SOC Model Evaluation
    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
  • Train
    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
    • Managed Security Monitoring
      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
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      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
      • Managed Threat Hunting
      • Managed Risk-Based SOAR
      • Managed Penetration Testing
  • Solutions
  • Resources
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    • Threat Advisory
  • Company
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