HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Encpk.aco (v) (VIPRE), Backdoor.Win32.Cycbot!IK (Emsisoft), Backdoor.Win32.Cycbot.FD, Trojan.Win32.Swrort.3.FD, BackdoorCycbot.YR (Lavasoft MAS)Behaviour: Trojan, Backdoor
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 4a5cb2fd6500a46ddd57a8b95f0edd14
SHA1: 1586674fb8d0fb3f22f1fcebc1bf9780495454d8
SHA256: 295d893d096ce555517556020411fee378d3b499938b25b11dc4bf9591a058cc
SSDeep: 3072:kZBxSeEqTP6s4 OX7dutZFfAdZ73r2KCMyGmPs7JZ0hUBia/cBEz/8o6ElVxd 3:W9TrKp FfCsJNQJZiaaG8ohd 3
Size: 170496 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2005-11-03 23:52:48
Analyzed on: WindowsXP SP3 32-bit
Summary: Backdoor. Malware that enables a remote control of victim's machine.
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Backdoor creates the following process(es):
%original file name%.exe:1700
%original file name%.exe:1868
The Backdoor injects its code into the following process(es):
%original file name%.exe:640
File activity
The process %original file name%.exe:640 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\JS5U2FJY\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\CHUFG9Y3\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\Z9CVVGC3\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (4084 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\51313.exe (85017 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (2668 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (5784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\M3GKZDDR\desktop.ini (67 bytes)
Registry activity
The process %original file name%.exe:1700 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "45 7A C8 EE CB B6 69 B9 86 A5 66 50 7A 27 03 20"
[HKCR\TypeLib\{1EA4DBF0-3C3B-11CF-810C-00AA00389B71}\1.1\0\win32]
"(Default)" = "%System%\oleacc.dll"
The process %original file name%.exe:640 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 14 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\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F9 16 17 12 1D 32 14 2D 7E 9D AC 43 93 0C 1A 0B"
[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=127.0.0.1:54667"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"
[HKCR\TypeLib\{1EA4DBF0-3C3B-11CF-810C-00AA00389B71}\1.1\0\win32]
"(Default)" = "%System%\oleacc.dll"
[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\507CF\51313.exe"
The Backdoor deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyOverride"
The process %original file name%.exe:1868 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "5F 5B 21 49 65 DF FB 94 66 88 41 FA 26 67 66 8A"
[HKCR\TypeLib\{1EA4DBF0-3C3B-11CF-810C-00AA00389B71}\1.1\0\win32]
"(Default)" = "%System%\oleacc.dll"
Network activity (URLs)
| URL | IP |
|---|---|
| hxxp://eu5cg.opalimanos.com/logo.png?sv=884&tq=gKZEtzoYwLzEvUb5dQzRsrCpBfEtTca3l74EgC9OjrPGpgfib1XFp5zpRPksUt+A/gSoSEU= | 69.43.161.171 |
| hxxp://www.google.com/ | 173.194.43.84 |
| hxxp://www.google.ca/?gfe_rd=ctrl&ei=Ah-tUoifCqyC8Qf-6IGYBQ&gws_rd=cr | 173.194.43.87 |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:1700
%original file name%.exe:1868 - Delete the original Backdoor file.
- Delete or disinfect the following files created/modified by the Backdoor:
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\JS5U2FJY\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\CHUFG9Y3\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\Z9CVVGC3\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (4084 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\51313.exe (85017 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (2668 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (5784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\M3GKZDDR\desktop.ini (67 bytes) - 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\507CF\51313.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.