MD5: 3c5d37b17c1daf88426c2178a8209457
SHA1: b2e073367cb4c008a93aa23844590f819dc68e64
SHA256: db818b00df6da8b33a62a2dbbefcc9640c78ef9f7bff19630f83558d73de9b6d
SSDeep: 6144:EdeDY6l5v/LhGUCrQDDMaBIot9Od3DXq1ZTkC:Z/LhGUNgxoed3Dmk
Size: 297984 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2005-11-27 10:22:10

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):

3c5d37b17c1daf88426c2178a8209457.exe:656
3c5d37b17c1daf88426c2178a8209457.exe:1596
1.tmp:1720
msiexec.exe:980

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

3c5d37b17c1daf88426c2178a8209457.exe:1792

File activity

The process 3c5d37b17c1daf88426c2178a8209457.exe:1792 makes changes in a file system.
The Trojan creates and/or writes to the following file(s):

%Program Files%\LP\BC05\2.exe (43 bytes)
%Program Files%\LP\BC05\C29.exe (294546 bytes)
%System%\config\SOFTWARE.LOG (5827 bytes)
%System%\config\software (2794 bytes)
%Program Files%\LP\BC05\3.exe (43 bytes)
%Program Files%\LP\BC05\1.tmp (12988 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (3946 bytes)

The Trojan deletes the following file(s):

%Program Files%\LP\BC05\2.exe (0 bytes)
%Program Files%\LP\BC05\3.exe (0 bytes)

The process 1.tmp:1720 makes changes in a file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4LERWH6R\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\GK3U1W8L\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\0F3G3XO6\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\RPV6VKZJ\desktop.ini (67 bytes)

Registry activity

The process 3c5d37b17c1daf88426c2178a8209457.exe:656 makes changes in a system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "3C A8 9A 04 F0 38 69 6C 96 8B AD 86 84 F4 E5 69"

The process 3c5d37b17c1daf88426c2178a8209457.exe:1792 makes changes in a system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F0 B6 7F D3 F6 E0 37 BE EA BD 7A 08 57 B2 B1 2B"

Automatic startup of the following service is disabled:

[HKLM\System\CurrentControlSet\Services\wscsvc]
"Start" = "3"

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]
"C29.exe" = "%Program Files%\LP\BC05\C29.exe"

The process 3c5d37b17c1daf88426c2178a8209457.exe:1596 makes changes in a system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "BF FE AC 61 47 8F 98 69 74 53 31 73 30 92 E8 35"

The process 1.tmp:1720 makes changes in a system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "A6 07 E8 85 F3 0C 0A E0 F8 3D 0D 93 1A 1A 4E 98"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"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\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"

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

[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]
"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"

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

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

[HKCU\Software\WinRAR]
"HWID" = "7B 35 43 41 46 37 43 45 41 2D 32 32 33 32 2D 34"

The process msiexec.exe:980 makes changes in a system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1A 75 35 BF D7 6A 74 C8 6B 58 95 F9 73 0D 76 DC"

Network activity (URLs)

URL	IP
hxxp://a26.d.akamai.net/msdownload/update/v3/static/trustedr/en/authrootseq.txt
hxxp://a26.d.akamai.net/msdownload/update/v3/static/trustedr/en/authrootstl.cab
hxxp://www.google.com/	173.194.43.83
hxxp://www.google.ca/?gws_rd=cr&ei=N_0rUs_pA-nlyQH63YGoDA	173.194.43.88
www.download.windowsupdate.com	63.216.54.98

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):
   

   3c5d37b17c1daf88426c2178a8209457.exe:656
   3c5d37b17c1daf88426c2178a8209457.exe:1596
   1.tmp:1720
   

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

   %Program Files%\LP\BC05\2.exe (43 bytes)
   %Program Files%\LP\BC05\C29.exe (294546 bytes)
   %System%\config\SOFTWARE.LOG (5827 bytes)
   %System%\config\software (2794 bytes)
   %Program Files%\LP\BC05\3.exe (43 bytes)
   %Program Files%\LP\BC05\1.tmp (12988 bytes)
   %Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (3946 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4LERWH6R\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\GK3U1W8L\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\0F3G3XO6\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\RPV6VKZJ\desktop.ini (67 bytes)

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

   [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   "C29.exe" = "%Program Files%\LP\BC05\C29.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.