signature-base/yara/gen_vhd_anomaly.yar
2019-12-21 22:11:20 +01:00

16 lines
401 B
Plaintext

rule SUSP_VHD_Suspicious_Small_Size {
meta:
description = "Detects suspicious VHD files"
author = "Florian Roth"
reference = "https://twitter.com/MeltX0R/status/1208095892877774850"
date = "2019-12-21"
score = 50
strings:
/* VHD */
$hc1 = { 63 6F 6E 65 63 74 69 78 }
condition:
uint16(0) == 0x6f63 and $hc1 at 0 and
filesize <= 4000KB
}