APT_MAL_macOS_NK_3CX_Malicious_Samples_Mar23_1


Description

Detects malicious macOS application related to 3CX compromise (decrypted payload)

Query · yara

strings:
      $s1 = "20230313064152Z0"
      $s2 = "Developer ID Application: 3CX (33CF4654HL)"
    condition:
      ( uint16(0) == 0xfeca or uint16(0) == 0xfacf or uint32(0) == 0xbebafeca ) and all of them
Raw source APT_MAL_macOS_NK_3CX_Malicious_Samples_Mar23_1 · YARA
Esc
Published by Neo23x0/signature-base ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified.
rule APT_MAL_macOS_NK_3CX_Malicious_Samples_Mar23_1 {
   meta:
      description = "Detects malicious macOS application related to 3CX compromise (decrypted payload)"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://www.reddit.com/r/crowdstrike/comments/125r3uu/20230329_situational_awareness_crowdstrike/"
      date = "2023-03-30"
      score = 80
      hash1 = "b86c695822013483fa4e2dfdf712c5ee777d7b99cbad8c2fa2274b133481eadb"
      hash2 = "ac99602999bf9823f221372378f95baa4fc68929bac3a10e8d9a107ec8074eca"
      hash3 = "51079c7e549cbad25429ff98b6d6ca02dc9234e466dd9b75a5e05b9d7b95af72"
      id = "ff39e577-7063-5025-bead-68394a86c87c"
    strings:
      $s1 = "20230313064152Z0"
      $s2 = "Developer ID Application: 3CX (33CF4654HL)"
    condition:
      ( uint16(0) == 0xfeca or uint16(0) == 0xfacf or uint32(0) == 0xbebafeca ) and all of them
}

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