Trojan-Dropper.Win32.Small.enw

Technical Details
Payload
Removal instructions

Technical Details

This Trojan is designed to install and launch other programs on the victim machine without the knowledge or consent of the user. It is a Windows application (PE EXE file). It is 29 184 bytes in size. It is written in C++.

MD5: 413b4eb7b90403eb0aabe8b0854c36bd

SHA1: 8913fcdbdedd4bbe8cce1d5a30fae2f36abc74b3

Payload

When launching, the Trojan extracts two files from its body and saves them in the current user's temporary directory under the following names:

%Temp%\ope<rnd>.exe
%Temp%\ope<rnd>.exe

where <rnd> is a random digit or letter of the Latin alphabet.

One of the created files is 23 845 bytes in size. It is detected by Kaspersky Anti-Virus as Trojan.Win32.Small.chz. The second file is 4625 bytes in size. It is detected by Kaspersky Anti-Virus as Trojan-Downloader.Win32.Agent.dhfe.

The Trojan then launches the files for execution and ceases running.

Removal instructions

If your computer does not have antivirus protection and has been infected by this malicious program, follow the instructions below to delete it:

1. Delete the following files:

   %Temp%\ope<rnd>.exe
   %Temp%\ope<rnd>.exe
   

2. Delete the original Trojan file (its location will depend on how the program originally penetrated the infected computer).
3. Perform a full scan of the computer using Kaspersky Anti-Virus with up-to-date antivirus databases (download a trial version).