DefenderYara/Backdoor/Win32/Poftsyun/Backdoor_Win32_Poftsyun_A.yar

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Plaintext

rule Backdoor_Win32_Poftsyun_A{
meta:
description = "Backdoor:Win32/Poftsyun.A,SIGNATURE_TYPE_PEHSTR_EXT,07 00 07 00 0a 00 00 01 00 "
strings :
$a_01_0 = {6e 64 20 6e 6f 74 20 73 75 70 70 6f 72 74 21 } //01 00 nd not support!
$a_01_1 = {6f 74 20 63 72 65 61 74 65 20 66 69 6c 65 20 6f 6e 20 63 6c 69 65 6e 74 21 } //01 00 ot create file on client!
$a_01_2 = {53 65 72 76 65 72 66 69 6c 65 20 69 73 20 73 6d 61 6c 6c 65 72 20 74 68 61 6e 20 43 6c 69 65 6e 74 66 69 6c 65 21 } //01 00 Serverfile is smaller than Clientfile!
$a_01_3 = {43 6c 69 65 6e 74 46 69 6c 65 20 69 73 20 73 6d 61 6c 6c 65 72 20 74 68 61 6e 20 53 65 72 76 65 72 46 69 6c 65 21 } //01 00 ClientFile is smaller than ServerFile!
$a_01_4 = {6f 74 20 6f 70 65 6e 20 66 69 6c 65 20 6f 6e 20 63 6c 69 65 6e 74 20 77 69 74 68 20 61 70 70 65 6e 64 20 6d 6f 64 65 21 } //01 00 ot open file on client with append mode!
$a_01_5 = {69 73 20 6e 6f 74 20 65 78 69 73 74 20 6f 72 20 73 74 6f 70 70 65 64 21 } //01 00 is not exist or stopped!
$a_01_6 = {5f 5f 75 74 6d 7a 25 33 44 31 37 33 32 37 32 33 37 33 } //01 00 __utmz%3D173272373
$a_01_7 = {74 72 61 6e 73 6c 61 74 65 5f 6c 6f 67 6f 2e 67 69 66 } //01 00 translate_logo.gif
$a_01_8 = {50 72 6f 78 79 20 54 79 70 65 3a 25 73 } //01 00 Proxy Type:%s
$a_01_9 = {2f 64 63 2f 6c 61 75 6e 63 68 } //00 00 /dc/launch
condition:
any of ($a_*)
}