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litterbox/Scanners/Yara/rules/elastic-yara/Linux_Packer_Patched_UPX.yar
T
2026-05-04 08:56:43 -07:00

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rule Linux_Packer_Patched_UPX_62e11c64 {
meta:
author = "Elastic Security"
id = "62e11c64-fc7d-4a0a-9d72-ad53ec3987ff"
fingerprint = "3297b5c63e70c557e71b739428b453039b142e1e04c2ab15eea4627d023b686d"
creation_date = "2021-06-08"
last_modified = "2021-07-28"
threat_name = "Linux.Packer.Patched_UPX"
reference = "https://cujo.com/upx-anti-unpacking-techniques-in-iot-malware/"
reference_sample = "02f81a1e1edcb9032a1d7256a002b11e1e864b2e9989f5d24ea1c9b507895669"
severity = 60
arch_context = "x86"
scan_context = "file"
license = "Elastic License v2"
os = "linux"
strings:
$a = { 55 50 58 21 [4] 00 00 00 00 00 00 00 00 00 00 00 00 }
condition:
all of them and $a in (0 .. 255)
}