signature-base/yara/gen_susp_cmd_var_expansion.yar
2018-09-28 13:29:35 +02:00

14 lines
400 B
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rule SUSP_CMD_Var_Expansion {
meta:
description = "Detects Office droppers that include a variable expansion string"
author = "Florian Roth"
reference = "https://twitter.com/asfakian/status/1044859525675843585"
date = "2018-09-26"
score = 60
strings:
$a1 = " /V:ON" ascii wide fullword
condition:
uint16(0) == 0xcfd0 and filesize < 500KB and $a1
}