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Win32.HLLW.Autoruner2.64529

Added to the Dr.Web virus database: 2019-10-08

Virus description added: 2019-10-09

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'noeli' = '%HOMEPATH%\noeli.exe /n'

Creates the following files on removable media

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\rcxb.tmp
<Drive name for removable media>:\cveuropeo.exe
<Drive name for removable media>:\rcxa.tmp
<Drive name for removable media>:\dial.exe
<Drive name for removable media>:\rcx9.tmp
<Drive name for removable media>:\toolbar.exe
<Drive name for removable media>:\rcx8.tmp
<Drive name for removable media>:\default.exe
<Drive name for removable media>:\rcx7.tmp
<Drive name for removable media>:\rcxc.tmp
<Drive name for removable media>:\dashborder_120.exe
<Drive name for removable media>:\rcx5.tmp
<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\rcx4.tmp
<Drive name for removable media>:\rcx3.tmp
<Drive name for removable media>:\join.exe
<Drive name for removable media>:\rcx2.tmp
<Drive name for removable media>:\rcx1.tmp
<Drive name for removable media>:\delete.exe
<Drive name for removable media>:\noeli.exe
<Drive name for removable media>:\rcx6.tmp
<Drive name for removable media>:\rcxd.tmp

Malicious functions

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

Modifies file system

Creates the following files

%HOMEPATH%\noeli.exe

Sets the 'hidden' attribute to the following files

%HOMEPATH%\noeli.exe
<Drive name for removable media>:\autorun.inf

Deletes the following files

<Drive name for removable media>:\delete.exe
<Drive name for removable media>:\join.exe
<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\dashborder_120.exe
<Drive name for removable media>:\default.exe
<Drive name for removable media>:\toolbar.exe
<Drive name for removable media>:\dial.exe
<Drive name for removable media>:\cveuropeo.exe

Substitutes the following files

<Drive name for removable media>:\delete.exe
<Drive name for removable media>:\join.exe
<Drive name for removable media>:\correct.exe
<Drive name for removable media>:\dashborder_120.exe
<Drive name for removable media>:\default.exe
<Drive name for removable media>:\toolbar.exe
<Drive name for removable media>:\dial.exe
<Drive name for removable media>:\cveuropeo.exe

Network activity

Connects to

'255.255.255.255':8000

UDP

DNS ASK ns#.##ayer1352.com
DNS ASK ns#.##ayer1352.net
DNS ASK ns#.##ayer1352.org

Miscellaneous

Creates and executes the following

'%HOMEPATH%\noeli.exe'