Trojan.DownLoader19.6725

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Desktop Procedure Routing' = '<SYSTEM32>\qtkpsxsqwvgn.exe'

Creates the following services:

[<HKLM>\SYSTEM\ControlSet001\Services\Net.Tcp TP Panel Helper Connectivity] 'ImagePath' = '<SYSTEM32>\qtkpsxsqwvgn.exe'
[<HKLM>\SYSTEM\ControlSet001\Services\Net.Tcp TP Panel Helper Connectivity] '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>\plrnzhuf.exe' "<SYSTEM32>\qtkpsxsqwvgn.exe"
'%WINDIR%\Temp\nsuqm7g34m9oq.exe' -r 35472 tcp
'%TEMP%\nsuqm7g2z88oqwkjt5uc.exe'
'<SYSTEM32>\qtkpsxsqwvgn.exe'

Modifies file system:

Creates the following files:

<SYSTEM32>\yqdukpal\run
<SYSTEM32>\yqdukpal\rng
%WINDIR%\Temp\nsuqm7g34m9oq.exe
<SYSTEM32>\yqdukpal\cfg
<SYSTEM32>\plrnzhuf.exe
%TEMP%\nsuqm7g2z88oqwkjt5uc.exe
<SYSTEM32>\yqdukpal\tst
<SYSTEM32>\qtkpsxsqwvgn.exe
<SYSTEM32>\yqdukpal\etc

Sets the 'hidden' attribute to the following files:

<SYSTEM32>\plrnzhuf.exe
<SYSTEM32>\qtkpsxsqwvgn.exe

Deletes the following files:

%WINDIR%\Temp\nsuqm7g34m9oq.exe
<DRIVERS>\etc\hosts
%TEMP%\nsuqm7g2z88oqwkjt5uc.exe

Substitutes the HOSTS file.

Network activity:

Connects to:

'tr###today.net':80
'yo###even.net':80
'tr###seven.net':80
'yo###oday.net':80
'lr###some.net':80
'yo###uch.net':80
'tr###such.net':80
'yo###ome.net':80
'wa###ood.net':80
'ta###hown.net':80
'wa###hown.net':80
'ta###ood.net':80
'tr###some.net':80
'ta###eet.net':80
'wa###eet.net':80
'vi###ome.net':80
'pl###today.net':80
'fi###even.net':80
'pl###seven.net':80
'fi###oday.net':80
'se###some.net':80
'fi###uch.net':80
'pl###such.net':80
'fi###ome.net':80
'lr###today.net':80
'vi###even.net':80
'lr###seven.net':80
'vi###oday.net':80
'pl###some.net':80
'vi###uch.net':80
'lr###such.net':80
'be##lxc.com':80
'ri###nstorm.net':80
'al###being.net':80
'to###eet.net':80
've###eck.net':80
'we###eck.net':80
'fa###eet.net':80
'ca####nbring.net':80
'mo###ugust.net':80
'le###form.net':80
'cr#####onaraminta.net':80
'mi###hown.net':80
'pr####tbottom.net':80
'mo###olor.net':80
'ab###ell.net':80
'we###hown.net':80
'mu###ood.net':80
'pi###food.net':80
'mu###hown.net':80
'pi###meet.net':80
'ta###eck.net':80
'wa###eck.net':80
'mu###eet.net':80
'pi###shown.net':80
've###ood.net':80
'we###ood.net':80
've###hown.net':80
'we###eet.net':80
'mu###eck.net':80
'pi###neck.net':80
've###eet.net':80

TCP:

HTTP GET requests:

http://tr###today.net/index.php
http://yo###even.net/index.php
http://tr###seven.net/index.php
http://yo###oday.net/index.php
http://lr###some.net/index.php
http://yo###uch.net/index.php
http://tr###such.net/index.php
http://yo###ome.net/index.php
http://wa###ood.net/index.php
http://ta###hown.net/index.php
http://wa###hown.net/index.php
http://ta###ood.net/index.php
http://tr###some.net/index.php
http://ta###eet.net/index.php
http://wa###eet.net/index.php
http://vi###ome.net/index.php
http://pl###today.net/index.php
http://fi###even.net/index.php
http://pl###seven.net/index.php
http://fi###oday.net/index.php
http://se###some.net/index.php
http://fi###uch.net/index.php
http://pl###such.net/index.php
http://fi###ome.net/index.php
http://lr###today.net/index.php
http://vi###even.net/index.php
http://lr###seven.net/index.php
http://vi###oday.net/index.php
http://pl###some.net/index.php
http://vi###uch.net/index.php
http://lr###such.net/index.php
http://be##lxc.com/index.php
http://ri###nstorm.net/index.php
http://al###being.net/index.php
http://to###eet.net/index.php
http://ve###eck.net/index.php
http://we###eck.net/index.php
http://fa###eet.net/index.php
http://ca####nbring.net/index.php
http://mo###ugust.net/index.php
http://le###form.net/index.php
http://cr#####onaraminta.net/index.php
http://mi###hown.net/index.php
http://pr####tbottom.net/index.php
http://mo###olor.net/index.php
http://ab###ell.net/index.php
http://we###hown.net/index.php
http://mu###ood.net/index.php
http://pi###food.net/index.php
http://mu###hown.net/index.php
http://pi###meet.net/index.php
http://ta###eck.net/index.php
http://wa###eck.net/index.php
http://mu###eet.net/index.php
http://pi###shown.net/index.php
http://ve###ood.net/index.php
http://we###ood.net/index.php
http://ve###hown.net/index.php
http://we###eet.net/index.php
http://mu###eck.net/index.php
http://pi###neck.net/index.php
http://ve###eet.net/index.php

UDP:

DNS ASK tr###today.net
DNS ASK yo###oday.net
DNS ASK tr###seven.net
DNS ASK yo###even.net
DNS ASK lr###some.net
DNS ASK vi###ome.net
DNS ASK tr###such.net
DNS ASK yo###uch.net
DNS ASK wa###ood.net
DNS ASK ta###ood.net
DNS ASK wa###hown.net
DNS ASK ta###hown.net
DNS ASK tr###some.net
DNS ASK yo###ome.net
DNS ASK wa###eet.net
DNS ASK ta###eet.net
DNS ASK pl###today.net
DNS ASK fi###oday.net
DNS ASK pl###seven.net
DNS ASK fi###even.net
DNS ASK se###some.net
DNS ASK le###some.net
DNS ASK pl###such.net
DNS ASK fi###uch.net
DNS ASK lr###today.net
DNS ASK vi###oday.net
DNS ASK lr###seven.net
DNS ASK vi###even.net
DNS ASK pl###some.net
DNS ASK fi###ome.net
DNS ASK lr###such.net
DNS ASK vi###uch.net
DNS ASK be##lxc.com
DNS ASK ri###nstorm.net
DNS ASK al###being.net
DNS ASK to###eet.net
DNS ASK ve###eck.net
DNS ASK we###eck.net
DNS ASK fa###eet.net
DNS ASK ca####nbring.net
DNS ASK mo###ugust.net
DNS ASK le###form.net
DNS ASK cr#####onaraminta.net
DNS ASK mi###hown.net
DNS ASK pr####tbottom.net
DNS ASK mo###olor.net
DNS ASK ab###ell.net
DNS ASK we###hown.net
DNS ASK mu###ood.net
DNS ASK pi###food.net
DNS ASK mu###hown.net
DNS ASK pi###meet.net
DNS ASK ta###eck.net
DNS ASK wa###eck.net
DNS ASK mu###eet.net
DNS ASK pi###shown.net
DNS ASK ve###ood.net
DNS ASK we###ood.net
DNS ASK ve###hown.net
DNS ASK we###eet.net
DNS ASK mu###eck.net
DNS ASK pi###neck.net
DNS ASK ve###eet.net
'23#.#55.255.250':1900

テクノロジー

用語

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