Encyclopedia entry
Updated:
May 11, 2007
| Published:
May 11, 2007
Aliases
Win32/Jowspry!generic
(CA)
Alert Level
(?)
Severe
Antimalware protection details
Microsoft recommends that you download the
latest definitions
to get protected.
Detection initially created:
Definition: 1.45.287.0
Released: Oct 07, 2008
|
Summary
TrojanDownloader:Win32/Jowspry is a malicious application that uses the Background Intelligent Transfer Service (BITS) to download programs from the Internet, possibly using HTTP or FTP URLs to obtain the files. After the file(s) are downloaded to the compromised computer, they are executed.
The use of BITS could allow TrojanDownloader:Win32/Jowspry to bypass some permission-based firewalls in order to install additional malware. This bypass relies on TrojanDownloader:Win32/Jowspry already being present on the system; it is not an attack vector for initial infection.
TrojanDownloader:Win32/Jowspry may try to masquerade as a non-executable file by using file icons associated with applications such as including Adobe Acrobat (PDF), Microsoft Word document files (.doc), or image icons.
Prevention
Take the following steps to help prevent infection on your system:
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Enable a firewall on your computer.
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Get the latest computer updates.
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Use up-to-date antivirus software.
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Use caution with attachments and file transfers.
Enable a firewall on your computer
Use a third-party firewall product or turn on the Microsoft Windows XP Internet Connection Firewall.
To turn on the Internet Connection Firewall in Windows XP
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Click Start, and click Control Panel.
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Click Network and Internet Connections. If you do not see Network and Internet Connections, click Switch to Category View.
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Click Change Windows Firewall Settings.
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Select On.
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Click OK.
Get the latest computer updates
Updates help protect your computer from viruses, worms, and other threats as they are discovered. You can use the Automatic Updates feature in Windows XP to automatically download future Microsoft security updates while your computer is on and connected to the Internet.
To turn on Automatic Updates in Windows XP
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Click Start, and click Control Panel.
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Click System.
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Click Automatic Updates.
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Select a setting. Microsoft recommends selecting Automatic. If you do not choose Automatic, but you choose to be notified when updates are ready, a notification balloon appears when new downloads are available to install. Click the notification balloon to review and install the updates.
Use up-to-date antivirus software
Most antivirus software can detect and prevent infection by known malicious software. To help protect you from infection, you should always run antivirus software that is updated with the latest signature files. Antivirus software is available from several sources. For more information, see http://www.microsoft.com/athome/security/downloads/default.mspx
Use caution with attachments and file transfers
Exercise caution with e-mail and attachments received from unknown sources, or received unexpectedly from known sources. Use extreme caution when accepting file transfers from known or unknown sources.
