MD5: 26918d8eb49feff148cf8bbe45a294f7
SHA1: ab1b942ad57e50908ce09aff86093ab7239df18e
SHA256: 0ec245b02ceb5ec73e0a4b8ce47eba182d6e13706144c7001699b4b4e3ab56db
SSDeep: 3072:7TkeOIqUSGI4RBSU8j5IQMITeh2ysYnTd2dkFrcsRTmGM:7TkeOIqRGIn9oWysi0wrcsRTm
Size: 168960 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2005-11-05 03:35:50
Analyzed on: WindowsXP SP3 32-bit

Summary:

Backdoor. Malware that enables a remote control of victim's machine.

Payload

No specific payload has been found.

Process activity

The Backdoor creates the following process(es):

%original file name%.exe:876
%original file name%.exe:1656

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

%original file name%.exe:1528

File activity

The process %original file name%.exe:1528 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Opera\Opera\operaprefs.ini (1 bytes)
%Documents and Settings%\%current user%\Application Data\841FD\D2B5.41F (2668 bytes)
%Documents and Settings%\%current user%\Application Data\841FD\EC7FC.exe (83537 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (6768 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (4508 bytes)

Registry activity

The process %original file name%.exe:876 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E9 41 1E 4D 72 E3 DE 12 C7 DF A8 EE C9 C9 2A AC"

The process %original file name%.exe:1656 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8B 88 00 51 3F 15 EE 72 FE 56 4A A3 10 61 ED 52"

The process %original file name%.exe:1528 makes changes in the system registry.
The Backdoor 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 1B 00 00 00 03 00 00 00 14 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"

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

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "1"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer" = "http=127.0.0.1:55414"

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D0 9A 51 27 20 E0 2C 9F E5 E4 E0 E6 0F B0 3D B5"

[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"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"DefaultConnectionSettings" = "3C 00 00 00 03 00 00 00 03 00 00 00 14 00 00 00"

[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"

The Backdoor adds the reference to itself to be executed when a user logs on:

[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell" = "explorer.exe,%Documents and Settings%\%current user%\Application Data\841FD\EC7FC.exe"

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

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

Network activity (URLs)

URL	IP
hxxp://alleducationalsoftware.com/creditcard2.png?sv=946&tq=gHZutDyMv5rJciG1J8K+1MWCJbP4lltXIA==	66.218.72.112
hxxp://767113.parkingcrew.net/logo.png?sv=176&tq=gKZEtzoYwLzEvUb5dQzRsrCqAPAoTca3l74EgC1OjrPGpgfib1XFp5zpRPksUt+A/gSoSEU=
hxxp://767113.parkingcrew.net/logo.png?sv=810&tq=gKZEtzoYwLzEvUb5dQzRsrCqAPAoTca3l74EgC9OjrPGpgfib1XFp5zpRPksUt+A/gSoSEU=
hxxp://www.google.com/	173.194.43.80
hxxp://www.google.ca/?gfe_rd=ctrl&ei=yk6wUt_dOquC8QeKlIH4BA&gws_rd=cr	173.194.43.88
2s6wduw5.hdmediastore.com	62.116.143.21
i9ev8.hdmediastore.com	62.116.143.21

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

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:876
   %original file name%.exe:1656
   

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

   %Documents and Settings%\%current user%\Application Data\Opera\Opera\operaprefs.ini (1 bytes)
   %Documents and Settings%\%current user%\Application Data\841FD\D2B5.41F (2668 bytes)
   %Documents and Settings%\%current user%\Application Data\841FD\EC7FC.exe (83537 bytes)
   %Documents and Settings%\%current user%\NTUSER.DAT.LOG (6768 bytes)
   

4. Remove the references to the Backdoor by modifying the following registry value(s) (How to Work with System Registry):
   

   [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
   "Shell" = "explorer.exe,%Documents and Settings%\%current user%\Application Data\841FD\EC7FC.exe"

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.