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MalwareJul 9, 2026

New GigaWiper Windows Backdoor Bundles Disk Wiping, Fake Ransomware, and Spyware

New GigaWiper backdoor combines disk wiping, fake ransomware, and spyware for destructive attacks.

Microsoft has identified a new destructive Windows backdoor named GigaWiper, which consolidates three older destructive tools: a disk wiper, a fake ransomware module, and a drive wiper. This malware, also known as BLUERABBIT, is suspected to be linked to an Iran-nexus group targeting Israeli organizations. Beyond its destructive capabilities, GigaWiper also functions as spyware, collecting sensitive data and providing remote access.

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The lesson from this incident

Full lesson

The GigaWiper (BLUERABBIT) backdoor represents a sophisticated convergence of destructive capabilities — disk wiping, fake ransomware, and spyware — likely deployed by an Iran-nexus threat actor targeting Israeli organizations. By bundling multiple attack vectors into a single payload, attackers can simultaneously destroy data, deceive incident responders into treating the incident as ransomware, and exfiltrate sensitive information before destruction. This multi-stage approach significantly complicates forensic investigation and delays effective incident response. The use of fake ransomware as a decoy is particularly dangerous because it misdirects recovery efforts toward negotiation rather than containment and restoration. Organizations without robust backups and endpoint detection may face unrecoverable data loss.

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Indicators of Compromise

Extracted by AI from the linked source. Not reviewed by an editor. How this works

  • hash_sha256 — a796f1545f5f81a40077b60885734243839b63973073347556604494303b8260
  • hash_sha256 — b2b71207086860689061337000127a426260234413664095c70776c22696203c
  • hash_sha256 — d26349981610b155e353434337738265445a755006674929411a7c2444c81700
  • hash_sha256 — e36125792345b7605015a471517975396354f690f6662243804302361173721b
  • url — https://threatpost.com/gigawiper-windows-backdoor-bundles-disk-wiping-fake-ransomware-and-spyware/

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