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  4. Inqtana.C

Inqtana.C

NameInqtana.C
Category:Worm
Platform:OSX

Summary

OSX/Inqtana.C is a modified version of OSX/Inqtana.A that has modified startup routine so that it affects both OSX 10.4 and 10.3 that have not been patched against vulnerability CAN-2005-1333

Inqtana.C has not been met in the wild and has internal counter that prevents it's operation after 24. February 2006. So it is unlikely that this variant would be a threat to Mac Users.

Disinfection

Patch your system by getting updates from Apple
Delete following files
  • /Users/applec0re.tgz
  • /Users/InqTest.class
  • /Users/InqTest.java
  • /Users/libavetanaBT.jnilib
  • /Users/javax
  • /Users/de
  • /Users/environment.plist
  • /Users/pwned.c
  • /Users/pwned.dylib
  • /Users/[user name]/.MacOSX/environment.plist

Additional Details

Inqtana.C arrives to victim system as OBEX Push request, requiring user to accept the data transfer. When the transfer is done Inqtana.B uses directory traversal exploit to copy it's files so that it starts when any application is started.

Detection

Inqtana.C is detected with the following F-Secure Anti-Virus updates:

[FSAV_Database_Version]
Version = 2006-02-21_01

Write-up: Jarno Niemelä

Technical Details: Gergely Erdélyi

Description Updated: Jarno Niemelä, February 22, 2006

F-Secure Corporation