TROJ_MSIDEBAR.AQ
Trojan:Win32/Msidebar.C, Trojan:Win32/Msidebar.C (Microsoft); Adware.ADH (Symantec); Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
950,152 bytes
EXE
Yes
26 Jul 2013
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan creates the following folders:
- %User Temp%\$inst
- %Program Files%\Fileocean
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
FileOcean = "fileoceandn.exe"
Other System Modifications
This Trojan deletes the following files:
- %User Temp%\$inst\0.tmp
- %User Temp%\$inst\1.tmp
- %User Temp%\$inst\3.tmp
- %User Temp%\$inst\4.tmp
- %User Temp%\$inst\5.tmp
- %User Temp%\$inst\6.tmp
- %User Temp%\$inst\7.tmp
- %User Temp%\$inst\8.tmp
- %User Temp%\$inst\9.tmp
- %User Temp%\$inst\10.tmp
- %User Temp%\$inst\11.tmp
- %User Temp%\$inst\12.tmp
- %User Temp%\$inst\13.tmp
- %User Temp%\$inst\14.tmp
- %User Temp%\$inst\15.tmp
- %User Temp%\$inst\16.tmp
- %User Temp%\$inst\17.tmp
- %User Temp%\$inst\20.tmp
- %User Temp%\$inst\50.tmp
- %User Temp%\$inst\21.tmp
- %User Temp%\$inst\51.tmp
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
It adds the following registry keys:
HKEY_CURRENT_USER\SOFTWARE\fileocean
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Fileocean
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{48E59293-9880-11CF-9754-00AA00C00908}\Control
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{48E59290-9880-11CF-9754-00AA00C00908}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{48E59290-9880-11CF-9754-00AA00C00908}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{F9043C85-F6F2-101A-A3C9-08002B2F49FB}\Control
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{F9043C88-F6F2-101A-A3C9-08002B2F49FB}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{F9043C88-F6F2-101A-A3C9-08002B2F49FB}\1.2\
0
It adds the following registry entries:
HKEY_CURRENT_USER\Software\fileocean
mcode = "ocean01"
HKEY_CURRENT_USER\Software\fileocean
pcode = "ocean01"
HKEY_CURRENT_USER\Software\fileocean
pname = "°Áö¿µ_¿ä¿ä½Ç·Â_¿µ»ó"
HKEY_CURRENT_USER\Software\fileocean
purl = "http://www.{BLOCKED}e.com/watch?v=FYYnmfpfgJ8"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Fileocean
DisplayName = "Fileocean"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Fileocean
DisplayIcon = "%Program Files%\Fileocean\Uninstall.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Fileocean
UninstallString = "%Program Files%\Fileocean\Uninstall.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Fileocean
NoModify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Fileocean
NoRepair = "1"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion
fileoceancc = "1"
HKEY_CURRENT_USER\Software\fileocean
Dnpath = "%User Profile%\My Documents"
It modifies the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{48E59293-9880-11CF-9754-00AA00C00908}\InprocServer32
ThreadingModel = "Apartment"
(Note: The default value data of the said registry entry is Apartment.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{48E59291-9880-11CF-9754-00AA00C00908}\TypeLib
Version = "1.0"
(Note: The default value data of the said registry entry is 1.0.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{48E59292-9880-11CF-9754-00AA00C00908}\TypeLib
Version = "1.0"
(Note: The default value data of the said registry entry is 1.0.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{F9043C85-F6F2-101A-A3C9-08002B2F49FB}\InprocServer32
ThreadingModel = "Apartment"
(Note: The default value data of the said registry entry is Apartment.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{083039C2-13F4-11D1-8B7E-0000F8754DA1}\TypeLib
Version = "1.2"
(Note: The default value data of the said registry entry is 1.2.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{F9043C87-F6F2-101A-A3C9-08002B2F49FB}\TypeLib
Version = "1.2"
(Note: The default value data of the said registry entry is 1.2.)
It deletes the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{48E59293-9880-11CF-9754-00AA00C00908}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{48E59294-9880-11CF-9754-00AA00C00908}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{48E59295-9880-11CF-9754-00AA00C00908}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{F9043C85-F6F2-101A-A3C9-08002B2F49FB}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7629CFA2-3FE5-101B-A3C9-08002B2F49FB}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7629CFA4-3FE5-101B-A3C9-08002B2F49FB}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3C4F3BE5-47EB-101B-A3C9-08002B2F49FB}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3C4F3BE3-47EB-101B-A3C9-08002B2F49FB}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3C4F3BE7-47EB-101B-A3C9-08002B2F49FB}
Dropping Routine
This Trojan drops the following files:
- %Windows%\oceansetup.exe
- %User Temp%\$inst\2.tmp
- %User Temp%\$inst\temp_0.tmp
- %Program Files%\Fileocean\Uninstall.ini
(Note: %Windows% is the Windows folder, which is usually C:\Windows.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}.93.185/~serviceitem/execute.php?{random characters}
- http://{BLOCKED}.93.185/~adcodecplus/oceanfile/oceanfile.html
- http://{BLOCKED}.93.185/~adcodecplus/oceanfile/oceanfile.txt
This report is generated via an automated analysis system.
SOLUTION
9.300
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Restart in Safe Mode
Step 3
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\SOFTWARE
- fileocean
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- Fileocean
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{48E59293-9880-11CF-9754-00AA00C00908}
- Control
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {48E59290-9880-11CF-9754-00AA00C00908}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{48E59290-9880-11CF-9754-00AA00C00908}\1.0
- 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F9043C85-F6F2-101A-A3C9-08002B2F49FB}
- Control
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {F9043C88-F6F2-101A-A3C9-08002B2F49FB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{F9043C88-F6F2-101A-A3C9-08002B2F49FB}\1.2
- 0
Step 4
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- FileOcean = "fileoceandn.exe"
- In HKEY_CURRENT_USER\Software\fileocean
- mcode = "ocean01"
- In HKEY_CURRENT_USER\Software\fileocean
- pcode = "ocean01"
- In HKEY_CURRENT_USER\Software\fileocean
- pname = "°Áö¿µ_¿ä¿ä½Ç·Â_¿µ»ó"
- In HKEY_CURRENT_USER\Software\fileocean
- purl = "http://www.{BLOCKED}e.com/watch?v=FYYnmfpfgJ8"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Fileocean
- DisplayName = "Fileocean"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Fileocean
- DisplayIcon = "%Program Files%\Fileocean\Uninstall.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Fileocean
- UninstallString = "%Program Files%\Fileocean\Uninstall.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Fileocean
- NoModify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Fileocean
- NoRepair = "1"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
- fileoceancc = "1"
- In HKEY_CURRENT_USER\Software\fileocean
- Dnpath = "%User Profile%\My Documents"
Step 5
Restore these modified registry values
Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{48E59293-9880-11CF-9754-00AA00C00908}\InprocServer32
- From: ThreadingModel = "Apartment"
To: ThreadingModel = ""Apartment""
- From: ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{48E59291-9880-11CF-9754-00AA00C00908}\TypeLib
- From: Version = "1.0"
To: Version = ""1.0""
- From: Version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{48E59292-9880-11CF-9754-00AA00C00908}\TypeLib
- From: Version = "1.0"
To: Version = ""1.0""
- From: Version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F9043C85-F6F2-101A-A3C9-08002B2F49FB}\InprocServer32
- From: ThreadingModel = "Apartment"
To: ThreadingModel = ""Apartment""
- From: ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{083039C2-13F4-11D1-8B7E-0000F8754DA1}\TypeLib
- From: Version = "1.2"
To: Version = ""1.2""
- From: Version = "1.2"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{F9043C87-F6F2-101A-A3C9-08002B2F49FB}\TypeLib
- From: Version = "1.2"
To: Version = ""1.2""
- From: Version = "1.2"
Step 6
Search and delete these components
- %Windows%\oceansetup.exe
- %User Temp%\$inst\2.tmp
- %User Temp%\$inst\temp_0.tmp
- %Program Files%\Fileocean\Uninstall.ini
Step 7
Search and delete these folders
- %User Temp%\$inst
- %Program Files%\Fileocean
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_MSIDEBAR.AQ. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Step 9
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %User Temp%\$inst\0.tmp
- %User Temp%\$inst\1.tmp
- %User Temp%\$inst\3.tmp
- %User Temp%\$inst\4.tmp
- %User Temp%\$inst\5.tmp
- %User Temp%\$inst\6.tmp
- %User Temp%\$inst\7.tmp
- %User Temp%\$inst\8.tmp
- %User Temp%\$inst\9.tmp
- %User Temp%\$inst\10.tmp
- %User Temp%\$inst\11.tmp
- %User Temp%\$inst\12.tmp
- %User Temp%\$inst\13.tmp
- %User Temp%\$inst\14.tmp
- %User Temp%\$inst\15.tmp
- %User Temp%\$inst\16.tmp
- %User Temp%\$inst\17.tmp
- %User Temp%\$inst\20.tmp
- %User Temp%\$inst\50.tmp
- %User Temp%\$inst\21.tmp
- %User Temp%\$inst\51.tmp
Step 10
Restore these deleted registry keys/values from backup
*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {48E59293-9880-11CF-9754-00AA00C00908}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {48E59294-9880-11CF-9754-00AA00C00908}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {48E59295-9880-11CF-9754-00AA00C00908}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {F9043C85-F6F2-101A-A3C9-08002B2F49FB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {7629CFA2-3FE5-101B-A3C9-08002B2F49FB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {7629CFA4-3FE5-101B-A3C9-08002B2F49FB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {3C4F3BE5-47EB-101B-A3C9-08002B2F49FB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {3C4F3BE3-47EB-101B-A3C9-08002B2F49FB}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {3C4F3BE7-47EB-101B-A3C9-08002B2F49FB}
Did this description help? Tell us how we did.