73 lines
2.6 KiB
Text
73 lines
2.6 KiB
Text
/*
|
|
Yara Rule Set
|
|
Author: Florian Roth
|
|
Date: 2016-06-08
|
|
Identifier: Suckfly Nidiran
|
|
*/
|
|
|
|
/* Rule Set ----------------------------------------------------------------- */
|
|
|
|
rule Nidiran_Trojan_1 {
|
|
meta:
|
|
description = "Detects Nidiran malware from Suckfly APT group"
|
|
author = "Florian Roth"
|
|
reference = "http://goo.gl/F3r1rr"
|
|
date = "2016-06-08"
|
|
hash1 = "47731c9d985ebc2bd7227fced3cc44c6d72e29b52f76fccbdaddd76cc3450706"
|
|
hash2 = "c2022e1114b162e79e44d974fd310d53e1bbdd8cb4f217553c1227cafed78855"
|
|
strings:
|
|
$x1 = "RUN SHELLCODE FAIL" fullword ascii
|
|
$x2 = "RUN DLLMEM THREAD FAIL" fullword ascii
|
|
|
|
$s1 = "cmd.exe /c %s" fullword ascii
|
|
$s2 = "CreateProcess returned %d, error at %d" fullword ascii
|
|
$s3 = "RUN PROCESS FAILD!" fullword ascii
|
|
$s5 = "RUN PROCESS SUCC!" fullword ascii
|
|
$s6 = "error to create pipe!" fullword ascii
|
|
$s7 = "5308.tmp" fullword ascii
|
|
$s8 = "MODIFYCONFIG FAIL!" fullword ascii
|
|
$s9 = "%s\\%08x.exe" fullword ascii
|
|
$s10 = "GetFileAttributes FILE FAILD" fullword ascii
|
|
$s11 = "DOWNLOAD FILE FAILD" fullword ascii
|
|
$s12 = "MODIFYCONFIG SUCC!" fullword ascii
|
|
condition:
|
|
( uint16(0) == 0x5a4d and filesize < 300KB and ( 1 of ($x*) or 3 of ($s*) ) ) or ( 10 of them )
|
|
}
|
|
|
|
rule Nidiran_Trojan_2 {
|
|
meta:
|
|
description = "Detects Nidiran malware from Suckfly APT group"
|
|
author = "Florian Roth"
|
|
reference = "http://goo.gl/F3r1rr"
|
|
date = "2016-06-08"
|
|
hash1 = "eaee2bf83cf90d35dab8a4711f7a5f2ebf9741007668f3746995f4564046fbdf"
|
|
strings:
|
|
$s1 = "%userprofile%\\Security Center\\secriter.dll" fullword ascii
|
|
$s2 = "WorkDll.dll" fullword ascii
|
|
$s3 = "InstallUserProcess is called" fullword ascii
|
|
$s4 = "DLL_PROCESS_ATTACH is called" fullword ascii
|
|
$s5 = "CreateRemoteThread Succ" fullword ascii
|
|
$s6 = "DoRunRemote" fullword ascii
|
|
$s7 = "DllRegisterServer is called" fullword ascii
|
|
$s8 = "DoInstallEntry is called" fullword ascii
|
|
$s9 = "copy Fail" fullword ascii
|
|
condition:
|
|
( uint16(0) == 0x5a4d and filesize < 200KB and 5 of ($s*) ) or ( all of them )
|
|
}
|
|
|
|
rule Nidiran_Trojan_3 {
|
|
meta:
|
|
description = "Detects Nidiran malware from Suckfly APT group"
|
|
author = "Florian Roth"
|
|
reference = "http://goo.gl/F3r1rr"
|
|
date = "2016-06-08"
|
|
hash1 = "ac7d7c676f58ebfa5def9b84553f00f283c61e4a310459178ea9e7164004e734"
|
|
strings:
|
|
$s1 = "WriteProcessMemory fail at %d " fullword ascii
|
|
$s2 = "CreateRemoteThread fail at %d " fullword ascii
|
|
$s3 = "VirtualAllocEx fail at %d " fullword ascii
|
|
$s4 = "CreateRemoteThread Succ" fullword ascii
|
|
$s5 = "VirtualAllocEx succ" fullword ascii
|
|
condition:
|
|
( uint16(0) == 0x5a4d and filesize < 200KB and 3 of ($s*) ) or ( all of them )
|
|
}
|