Home / malware

PDF

Trojan:Win32/Qhost.IE

First posted on 29 October 2013.
Source: Microsoft

Aliases :

There are no other names known for Trojan:Win32/Qhost.IE.

Explanation :

Threat behavior Trojan:Win32/Qhost.IE 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

Trojan:Win32/Qhost.IE creates the following files on your computer:

• c:\documents and settings\administrator\local settings\temp\all.exe
• c:\documents and settings\administrator\local settings\temp\lm.exe
• c:\documents and settings\administrator\local settings\temp\wa.exe
• c:\documents and settings\administrator\local settings\temp\e.tmp\2v7ju5g8vzg.vbs
• c:\documents and settings\administrator\local settings\temp\e.tmp\3v7ju5g8vzg
• c:\documents and settings\administrator\local settings\temp\e.tmp\4v7ju5g8vzg
• c:\documents and settings\administrator\local settings\temp\e.tmp\6v7ju5g8vzg.exe
• c:\documents and settings\administrator\local settings\temp\e.tmp\bat.bat
• c:\documents and settings\administrator\local settings\temp\e.tmp\v7ju5g8vzg.vbs

Payload

Modifies Hosts file

Trojan:Win32/Qhost.IE modifies the Windows Hosts file. The local Hosts file overrides the DNS resolution of a website URL to a particular IP address. Malicious software may make modifications to the Hosts file in order to redirect specified URLs to different IP addresses. Malware often modifies an affected computer's Hosts file in order to stop users from accessing websites associated with particular security-related applications (such as antivirus for example). Contacts remote hosts

The malware may contact the following remote hosts using port 80:

• gromz.hopto.org
• v7ju5g8vzg.hopto.org

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 9f9c4b091e39da1d33e821344d209b8dea324273.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\local settings\temp\all.exe
c:\documents and settings\administrator\local settings\temp\lm.exe
c:\documents and settings\administrator\local settings\temp\wa.exe
c:\documents and settings\administrator\local settings\temp\e.tmp\2v7ju5g8vzg.vbs
c:\documents and settings\administrator\local settings\temp\e.tmp\3v7ju5g8vzg
c:\documents and settings\administrator\local settings\temp\e.tmp\4v7ju5g8vzg
c:\documents and settings\administrator\local settings\temp\e.tmp\6v7ju5g8vzg.exe
c:\documents and settings\administrator\local settings\temp\e.tmp\bat.bat
c:\documents and settings\administrator\local settings\temp\e.tmp\v7ju5g8vzg.vbs

Last update 29 October 2013

 

TOP