signature-base/yara/crime_mikey_trojan.yar

22 lines
833 B
Plaintext

rule Gen_Trojan_Mikey {
meta:
description = "Trojan Mikey - file sample_mikey.exe"
license = "https://creativecommons.org/licenses/by-nc/4.0/"
author = "Florian Roth"
date = "2015-05-07"
hash = "a8e6c3ca056b3ff2495d7728654b780735b3a4cb"
score = 70
strings:
$s0 = "nuR\\noisreVtnerruC\\swodniW\\tfosorciM\\ERAWTFOS" fullword ascii
/* reversed string 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run' */
$x1 = "User-Agent:Mozilla/4.0 (compatible; MSIE %d.0; Windows NT %d.1; SV1)" fullword ascii
$x2 = "User-Agent:Mozilla/4.0 (compatible; MSIE 6.00; Windows NT 5.0; MyIE 3.01)" fullword ascii
$x3 = "%d*%u%s" fullword ascii
$x4 = "%s %s:%d" fullword ascii
$x5 = "Mnopqrst Vwxyabcde Ghijklm Opqrstuv Xya" fullword ascii
condition:
uint16(0) == 0x5a4d and $s0 and 2 of ($x*)
}