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Trojan:Win32/Naporjap.A


First posted on 10 December 2013.
Source: Microsoft

Aliases :

There are no other names known for Trojan:Win32/Naporjap.A.

Explanation :

Threat behavior Trojan:Win32/Naporjap.A is a malicious program that is unable to spread of its own accord. It may perform a number of actions of an attacker's choice on an affected computer.

Installation

When it runs, Trojan:Win32/Naporjap.A copies itself to c:\documents and settings\administrator\application data\systems.exe. The malware modifies the following registry entry so that it runs each time you start your PC:

Adds value: "(default)"
With data: "c:\documents and settings\administrator\application data\systems.exe"
To subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run The malware creates the following files on your computer:

  • c:\documents and settings\administrator\application data\npf.jpg
  • c:\documents and settings\administrator\application data\verinf.tmz


Payload

Contacts remote hosts
Trojan:Win32/Naporjap.A may contact the following remote hosts:

  • using port 80
  • att-inf.beepworld.it using port 80
  • hosp-att.land.ru using port 80
  • logfotos.110mb.com using port 80
  • smtps.bol.com.br using port 587
  • versao.jpg using port 80
  • www.facebook.com using port 80

Commonly, malware may contact a remote host for the following purposes:
  • To confirm Internet connectivity
  • To report a new infection to its author
  • To receive configuration or other data
  • To download and execute arbitrary files (including updates or additional malware)
  • To receive instruction from a remote attacker
  • To upload data taken from the affected computer

This malware description was produced and published using our automated analysis system's examination of file SHA1 5bda183578d02dabd7fd72585d83f1b19cf79d10.Symptoms

System changes

The following could indicate that you have this threat on your PC:

  • The presence of the following files:
c:\documents and settings\administrator\application data\npf.jpg
c:\documents and settings\administrator\application data\systems.exe
c:\documents and settings\administrator\application data\verinf.tmz
  • You see these entries or keys in your registry:
Adds value: "(default)"
With data: "c:\documents and settings\administrator\application data\systems.exe"
To subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Last update 10 December 2013

 

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