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Rewterz Threat Alert – SmokeLoader Malware – Active IOCs
January 5, 2023
Rewterz Threat Alert – STOP (DJVU) Ransomware – Active IOCs
January 6, 2023

Rewterz Threat Alert – Mirai Botnet aka Katana – Active IOCs

January 6, 2023

Severity

High

Analysis Summary

Mirai is one of the first major botnets to target linux based vulnerable networking devices. It was discovered in August 2016 and its name means “future” in Japanese. It targets a broad range of networked embedded devices, including IP cameras, home routers, and other IoT devices. 

Mirai botnet exploits security flaws in IoT devices and has the ability to turn millions of IoT devices into botnets and conduct attacks.

Previously a new Mirai variant was observed making the rounds called mirai_pteamirai. The botnet exploits a vulnerability in KGUARD DVR to spread within an environment. The vulnerability exists in the 2016 firmware version and is fixed in any version after the 2017 release. This botnet is active and used to cause DDoS conditions.

Impact

  • Server Outage
  • Data Loss
  • Website Downtime

Indicators of Compromise

MD5

  • 95975a14eb3a414dd45da9a087b72051
  • 31682721fb07535f7c2525a892ae4f0b
  • de37ec7611b2fbed9277670763ae6eff
  • 55b2d59f9e60156965afcc9244200c6e

SHA-256

  • 2e19653d3e7f5d210f393f56bb6e49ef994678774f85a11fab4c85c4dc4af119
  • bea1e82c7e9040eade0ffafa6e3a42d5a60b42e604443e90cf307ea9c0389b91
  • 10ee143ad008bf45a83f4d4a80834af03ed80667fc5760f531243d72a4c93a19
  • d856fda682c152eac30360caef435d4a9448f501947945b63a55717f6d86859b

SHA-1

  • 7f91e31086b543319af9fa0e8e217b4e083d9c0b
  • 716098993c843c08ae6c26df25d7569d88a4ece5
  • 40d15c446f4a0de312498bfb03436e8774ced4bb
  • c9c5025f30f91f8cb3a83b885bd06ed91e992af8

Remediation

  • Upgrade your operating system.
  • Don’t open files and links from unknown sources.
  • Install and run anti-virus scans
  • Services
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      • Compromise Assessment
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      • Penetration Testing
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      • Incident Response
      • Incident Analysis
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    • SOC Consultancy
    •     SOC Maturity Assessment
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    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
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    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
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      • Hybrid SOC
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      • Managed Penetration Testing
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