MAL_ZinFoq_Dec25


Description

Detects ZinFoq Go-based Linux post-exploitation implant (interactive shell + file ops/exfil) seen in React2Shell intrusions

Query · yara

strings:
      $s1 = "_FlAg_UuId;;;;;;"
      $s2 = "interactive_shell"
      $s3 = "explorer_download"
   condition:
      uint32(0) == 0x464c457f and all of them
Raw source MAL_ZinFoq_Dec25 · YARA
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Published by Neo23x0/signature-base ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified.
rule MAL_ZinFoq_Dec25 {
   meta:
      description = "Detects ZinFoq Go-based Linux post-exploitation implant (interactive shell + file ops/exfil) seen in React2Shell intrusions"
      author = "RussianPanda"
      date = "2025-12-08"
      score = 85
      reference = "https://www.huntress.com/blog/peerblight-linux-backdoor-exploits-react2shell"
      hash = "0f0f9c339fcc267ec3d560c7168c56f607232cbeb158cb02a0818720a54e72ce"
      id = "fd8d517c-be4f-5170-b877-fbb457c54ef8"
   strings:
      $s1 = "_FlAg_UuId;;;;;;"
      $s2 = "interactive_shell"
      $s3 = "explorer_download"
   condition:
      uint32(0) == 0x464c457f and all of them
}

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