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Security Intelligence Center
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Short Name

POP3:EXT:DOT-LNK

Severity

Medium

Recommended

No

Category

POP3

Keywords

.lnk e-mail attachment

Release Date

2004/07/28

Update Number

1213

Supported Platforms

di-5.3+, idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+

POP3: .LNK


This signature detects e-mail attachments that have the extension .lnk and were received through POP3. Because .LNKs (Windows link) files can point to any program, this can indicate an incoming e-mail virus. Attackers can create a link pointing to a dangerous program, tricking users into executing the link and affecting the system.

Extended Description

The impact on the target system is dependent on the instructions contained in the malicious .lnk file.

References

  • URL: http://www.cknow.com/vtutor/FileExtensions.html
  • URL: http://www.novatone.net/mag/mailsec.htm
  • URL: http://support.microsoft.com/?kbid=235309

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