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Security Intelligence Center
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Short Name

SMTP:EXT:DOT-CPL

Severity

Medium

Recommended

No

Category

SMTP

Keywords

microsoft windows cpl

Release Date

2004/07/21

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+

SMTP: .CPL


This signature detects e-mail attachments with the extension ".cpl" sent through SMTP. This can indicate an incoming e-mail virus; CPLs (Control Panel eLements) are standard Microsoft Windows files that contain Windows Control Panel settings. Attackers can hide malicious executables within a CPL file, tricking users into executing the file and infecting the system.

Extended Description

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

References

  • URL: http://support.microsoft.com/?kbid=313808
  • URL: http://support.microsoft.com/default.aspx?scid=kb;EN-US;149648
  • URL: http://www.cknow.com/vtutor/FileExtensions.html

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