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TrojanDropper:Win32/Evotob.AC

First posted on 08 November 2016.
Source: Microsoft

Aliases :

There are no other names known for TrojanDropper:Win32/Evotob.AC.

Explanation :

Installation
This threat can create files on your PC, including:

• %APPDATA%\{61ed5bd8-9d40-3600-5000-0ddcbffc85}\8h4htdpf.dat
• %APPDATA% \{61ed5bd8-9d40-3600-5000-0ddcbffc85}\igoiik3u.dat
• %APPDATA% \mozilla\svchoste.exe

It can make various registry changes during its installation, including:

In subkey: HKLM\SOFTWARE\ODBC\ODBCINST.INI\ODBC Connection Pooling

Sets value: "Retry Wait"
With data: "0"

It modifies the registry so that it runs each time you start your PC. For example:

In subkey: HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Sets value: "{61ED5BD8-9D40-3600-5000-0DDCBFFC85}"
With data: ""%APPDATA%\{61ed5bd8-9d40-3600-5000-0ddcbffc85}\rsxyejkpqv.exe""

The malware uses code injection to make it harder to detect and remove. It can inject code into running processes.

Payload

Installs malware or unwanted software

This trojan can install other malware or unwanted software onto your PC.

Additional information

Creates a mutex

This threat can create one or more mutexes on your PC. For example:

• 5ugqm9qy
• bzb8LD2v
• iEIWa5W3
• mqcig7US
• SAWE5YMo

It might use this mutex as an infection marker to prevent more than one copy of the threat running on your PC.

This malware description was published using automated analysis of file SHA1 6bff464a9baed708e81fec92c1309242a6f10315.

Last update 08 November 2016

 

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