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  • What's on your wire: Detect Linux ELF files

What's on your wire: Detect Linux ELF files

ChristopherAhea
ChristopherAhea Beginner
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‎2018-07-23 10:51 AM

Servers are attacked every day and sometimes, those attacks are successful.  There is a lot of attention to Windows executables that come down on the wire, but I also wanted to know when my systems were downloading ELF files, typically used by Linux systems.  With some recent exploits that target Linux web servers and the delivery of crypto-mining software, I wrote a parser that attempts to identify Linux ELF files and places that meta in the 'filetype' meta key.

 

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This isn't limited to crypto-mining ELF files and has detected many others in testing.  The parser is attached below.

 

I hope you find this parser useful, and as always, happy hunting.

 

Chris

fingerprint_elf.lua.zip
  • elf
  • NetWitness
  • netwitness network
  • NW
  • NWP
  • packets
  • RSA NetWitness
  • RSA NetWitness Platform
fingerprint_elf.lua.zip
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