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Other:W32/Packed

First posted on 10 September 2009.
Source: SecurityHome

Aliases :

There are no other names known for Other:W32/Packed.

Explanation :

A malicious program which does not easily fit into any other malware category.

Additional DetailsOther:W32/Packed is our Generic Detection name for files that have been packed using file compressor programs purchased using stolen credit cards and/or hijacked "web wallet" accounts.

Malware authors use file compressor programs to compress their malware and thwart security programs attempting to scan, debug, emulate or unpack the compressed file as part of their normal security procedures.

Exact detection of the compressed file itself is problematic due to its polymorphic nature; therefore generic detection of the (usually static) "key" algorithm used to unpack the compressed file is used instead.


Note

If you find a legitimate file that is detected by F-Secure Anti-Virus as one of the following, please send it to us for review:

  • Packed.Win32.PolyCrypt
  • Packed.Win32.Tibs,
  • Packed.Win32.Klone
  • Packed.Win32.CryptExe   • Packed.Win32.Exeref

Last update 10 September 2009

 

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