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Microsoft Security Update MS03-026

Quick specs
Price: Update
Operating system: Windows 98/2000/XP/2003
Date added: August 11, 2003
Total Downloads: 2,275
Downloads last week: 13
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Publisher's description

From Microsoft :

The Microsoft Product Support Services Security Team is issuing this alert to inform customers about a new worm named W32.Blaster.Worm which is spreading in the wild. This virus is also known as: W32/Lovsan.worm (McAfee), WORM_MSBLAST.A (Trendmicro), Win32.Posa.Worm (Computer Associates). Best practices, such as applying security patch MS03-026 should prevent infection from this worm.

This worm scans a random IP range to look for vulnerable systems on TCP port 135. The worm attempts to exploit the DCOM RPC vulnerability patched by MS03-026.

Once the Exploit code is sent to a system, it downloads and executes the file MSBLAST.EXE from a remote system via TFTP. Once run, the worm creates the registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "windows auto update" = msblast.exe I just want to say LOVE YOU SAN!! bill

Symptoms of the virus: Some customers may not notice any symptoms at all. A typical symptom is the system is rebooting every few minutes without user input. Customers may also see:

Presence of unusual TFTP* files
Presence of the file msblast.exe in the WINDOWS SYSTEM32 directory

To detect this virus, search for msblast.exe in the WINDOWS SYSTEM32 directory or download the latest anti-virus software signature from your anti-virus vendor and scan your machine.

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