high
Summary
Summary
Action- More Information
| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Protection available since | 27 October 2008 15:50:33 (GMT) |
| Detected by | All Sophos products |
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Action
- Summary
- Action
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Please follow the instructions for removing Trojans.
More Information
Troj/Tiotua-U is a Trojan for the Windows platform.
Troj/Tiotua-U includes functionality to access the internet and communicate with a remote server via HTTP.
When first run Troj/Tiotua-U copies itself to:
<Windows>\chrome.exe
<System>\chrome.exe
and creates the file <System>\autorun.ini.
The following registry entry is created to run chrome.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Yahoo Messengger
<System>\chrome.exe
The following registry entry is changed to run chrome.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Shell
Explorer.exe chrome.exe
Troj/Tiotua-U changes settings for Microsoft Internet Explorer by modifying values under:
HKCU\Software\Microsoft\Internet Explorer\Main\Start Page
HKLM\SOFTWARE\Microsoft\Internet Explorer\Main\Default_Page_URL
HKLM\SOFTWARE\Microsoft\Internet Explorer\Main\Default_Search_URL
HKLM\SOFTWARE\Microsoft\Internet Explorer\Main\Search Page
HKLM\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page
The following registry entries are set, disabling system software:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableTaskMgr
1
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
1
The following registry entry is set:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NofolderOptions
1
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