01-07-2003, 05:30 PM
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<h2><font color=#003399>Lirva worm attaches to Avril Lavigne
The popularity of singer Avril Lavigne has spread to the world of computer viruses.
Lirva (w32.Lirva@mm), also known as Naith, is a mass-mailing worm that is UPX-compressed to a file size of 32,766 and arrives via e-mail either announcing a new Microsoft patch or offering fan access to Avril Lavigne.
Once active, Lirva will attempt to e-mail copies of itself to all contacts on an infected system, shut down all antivirus and firewall programs, and launch a Web browser to open the Avril Lavigne Web site on an infected user's desktop.
Lirva uses the Iframe vulnerability, so on unpatched systems, the worm will automatically execute whether or not the attached file is opened.
Antivirus vendor MessageLabs reports that parts of the Lirva worm code very look familiar, so Lirva may turn out to be a variant of a known virus family.
Because this worm sends e-mail but is not considered destructive, it rates a 4 on the ZDNet Virus Meter.
Re: Brigade Ocho Free membership Re: According to Daos Summit Fw: Avril Lavigne - the best Re: Reply on account for IIS-Security Re: ACTR/ACCELS Transcriptions Re: The real estate plunger Fwd: Re: Admission procedure Re: Reply on account for IFRAME-Security breach Fwd: Re: Reply on account for Incorrect MIME-header The e-mail containing Lirva may also include the following information in the body text: Patch is also provided to subscribed list of Microsoft® Tech Support: to apply the patch immediately.
Microsoft strongly urges all customers using IIS 4.0 and 5.0 who have not already done so and do not need to take additional action.
Microsoft has identified a security vulnerability in Microsoft® IIS 4.0 and 5.0 To prevent from the further buffer overflow attacks apply the MSO-patch Attachment you sent to %s is intended to overwrite start address at 0000:HH4F Restricted area response team (RART) Admission form attached below Vote for Im with you!
Once active, Lirva will attempt to shut down all security programs such as antivirus and firewall software.
Users of Microsoft Outlook 2002 and users of Outlook 2000 who have installed the Security Update and have installed the patch for the MS01-020 vulnerability in Internet Explorer should be safe from Lirva. Users who have not upgraded to Outlook 2002 or who have not installed the patch for the MS01-020 vulnerability should do so. In general, do not open attached files in e-mail without first saving them to hard disk and scanning them with updated antivirus software. Contact your antivirus vendor to obtain the most current antivirus signature files that include MyLife.
A few antivirus software companies have updated their signature files to include this worm. This will stop the infection upon contact and in some cases will remove an active infection from your system. For more information, see Central Command, McAfee, Sophos, and Trend Micro.
Full Article <font color="red"><u>Here</u></font>