Trojan.DownLoader18.58964

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Enumerator Bluetooth Registry' = '<SYSTEM32>\aqzxshnbwdto.exe'

Creates the following services:

[<HKLM>\SYSTEM\ControlSet001\Services\Net.Tcp Portable Microsoft RPC Hardware] 'ImagePath' = '<SYSTEM32>\aqzxshnbwdto.exe'
[<HKLM>\SYSTEM\ControlSet001\Services\Net.Tcp Portable Microsoft RPC Hardware] 'Start' = '00000002'

Malicious functions:

To complicate detection of its presence in the operating system,

blocks the following features:

Windows Security Center

Creates and executes the following:

'<SYSTEM32>\sfdlyyd.exe' "<SYSTEM32>\aqzxshnbwdto.exe"
'%WINDIR%\Temp\afekhtlg3nq6uy.exe' -r 26765 tcp
'C:\Documents and Settings\%USERNAME%\Local Settings\Temp\afekhtlg3ixvuyqn9lzkfu.exe'
'<SYSTEM32>\aqzxshnbwdto.exe'

Modifies file system :

Creates the following files:

<SYSTEM32>\ywzqdsqw\run
<SYSTEM32>\ywzqdsqw\rng
%WINDIR%\Temp\afekhtlg3nq6uy.exe
<SYSTEM32>\ywzqdsqw\cfg
<SYSTEM32>\sfdlyyd.exe
C:\Documents and Settings\%USERNAME%\Local Settings\Temp\afekhtlg3ixvuyqn9lzkfu.exe
<SYSTEM32>\ywzqdsqw\tst
<SYSTEM32>\aqzxshnbwdto.exe
<SYSTEM32>\ywzqdsqw\etc

Sets the 'hidden' attribute to the following files:

<SYSTEM32>\sfdlyyd.exe
<SYSTEM32>\aqzxshnbwdto.exe

Deletes the following files:

%WINDIR%\Temp\afekhtlg3nq6uy.exe
<DRIVERS>\etc\hosts
C:\Documents and Settings\%USERNAME%\Local Settings\Temp\afekhtlg3ixvuyqn9lzkfu.exe

Substitutes the HOSTS file.

Network activity:

Connects to:

'sh####mportant.net':80
'de###lse.net':80
'sh###else.net':80
'fr###yfine.net':80
'pu###ine.net':80
'de####portant.net':80
'sh###fine.net':80
'ti####portant.net':80
'mo####mportant.net':80
'de###ice.net':80
'sh###nice.net':80
'de###ine.net':80
'al###nice.net':80
'de####erfine.net':80
'al###fine.net':80
'de####erelse.net':80
'al###else.net':80
'de####ernice.net':80
'pu###lse.net':80
'fr###ynice.net':80
'pu###ice.net':80
'fr####important.net':80
'pu####portant.net':80
'fr###yelse.net':80
'ti###lse.net':80
'al###being.net':80
'ca####nbring.net':80
'pr####tbottom.net':80
'en###fine.net':80
'be##lxc.com':80
'ri###nstorm.net':80
'mo###ugust.net':80
'le###form.net':80
'cr#####onaraminta.net':80
'mo###olor.net':80
'ab###ell.net':80
'mi###hown.net':80
'ti###ine.net':80
'mo###fine.net':80
'li####portant.net':80
'mo###else.net':80
'ti###ice.net':80
'mo###nice.net':80
'li###ice.net':80
'en###nice.net':80
'li###ine.net':80
'en####mportant.net':80
'li###lse.net':80
'en###else.net':80

TCP:

HTTP GET requests:

http://sh####mportant.net/index.php
http://de###lse.net/index.php
http://sh###else.net/index.php
http://fr###yfine.net/index.php
http://pu###ine.net/index.php
http://de####portant.net/index.php
http://sh###fine.net/index.php
http://ti####portant.net/index.php
http://mo####mportant.net/index.php
http://de###ice.net/index.php
http://sh###nice.net/index.php
http://de###ine.net/index.php
http://al###nice.net/index.php
http://de####erfine.net/index.php
http://al###fine.net/index.php
http://de####erelse.net/index.php
http://al###else.net/index.php
http://de####ernice.net/index.php
http://pu###lse.net/index.php
http://fr###ynice.net/index.php
http://pu###ice.net/index.php
http://fr####important.net/index.php
http://pu####portant.net/index.php
http://fr###yelse.net/index.php
http://ti###lse.net/index.php
http://al###being.net/index.php
http://ca####nbring.net/index.php
http://pr####tbottom.net/index.php
http://en###fine.net/index.php
http://be##lxc.com/index.php
http://ri###nstorm.net/index.php
http://mo###ugust.net/index.php
http://le###form.net/index.php
http://cr#####onaraminta.net/index.php
http://mo###olor.net/index.php
http://ab###ell.net/index.php
http://mi###hown.net/index.php
http://ti###ine.net/index.php
http://mo###fine.net/index.php
http://li####portant.net/index.php
http://mo###else.net/index.php
http://ti###ice.net/index.php
http://mo###nice.net/index.php
http://li###ice.net/index.php
http://en###nice.net/index.php
http://li###ine.net/index.php
http://en####mportant.net/index.php
http://li###lse.net/index.php
http://en###else.net/index.php

UDP:

DNS ASK sh####mportant.net
DNS ASK de###lse.net
DNS ASK sh###else.net
DNS ASK fr###yfine.net
DNS ASK pu###ine.net
DNS ASK de####portant.net
DNS ASK sh###fine.net
DNS ASK ti####portant.net
DNS ASK mo####mportant.net
DNS ASK de###ice.net
DNS ASK sh###nice.net
DNS ASK de###ine.net
DNS ASK pu###ice.net
DNS ASK de####ernice.net
DNS ASK al###nice.net
DNS ASK de####erfine.net
DNS ASK al####mportant.net
DNS ASK de####erelse.net
DNS ASK al###else.net
DNS ASK fr###yelse.net
DNS ASK pu###lse.net
DNS ASK fr###ynice.net
DNS ASK al###fine.net
DNS ASK fr####important.net
DNS ASK pu####portant.net
DNS ASK ti###lse.net
DNS ASK al###being.net
DNS ASK ca####nbring.net
DNS ASK pr####tbottom.net
DNS ASK en###fine.net
DNS ASK be##lxc.com
DNS ASK ri###nstorm.net
DNS ASK mo###ugust.net
DNS ASK le###form.net
DNS ASK cr#####onaraminta.net
DNS ASK mo###olor.net
DNS ASK ab###ell.net
DNS ASK mi###hown.net
DNS ASK ti###ine.net
DNS ASK mo###fine.net
DNS ASK li####portant.net
DNS ASK mo###else.net
DNS ASK ti###ice.net
DNS ASK mo###nice.net
DNS ASK li###ice.net
DNS ASK en###nice.net
DNS ASK li###ine.net
DNS ASK en####mportant.net
DNS ASK li###lse.net
DNS ASK en###else.net
'23#.#55.255.250':1900

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