Classification

Category: Malware

Type: -

Aliases: Holar.H

Summary


Holar.H worm was found on 28th of May, 2003. It spreads over email and Kazaa P2P networks. The worm was written in Visual Basic and is compressed with the UPX executable compressor.

Removal


Automatic action

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

Knowledge Base

Find the latest advice in our Community Knowledge Base.

About the product

See the manual for your F-Secure product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details


Spreading through email

Holar.H searches through '.htm', '.html', '.txt' and '.dbx'files to collect email addresses. Using its own SMTP engine it sends messages with infected attachments to these addresses.

Sender address of the email is taken from the user's default email settings.

Content of the infected emails are randomly chosen from the following list:

Subject: '''*< Love Speaks it all >*'''
Hii
Try this great program allowing u to translate 100 languages.
just write a passage in english and chose a language to get the traslation
one of my friends used it with his arabian gf and it worked successfully ;)
so , Now we can say ' Love Speaks it All ' :)
Subject: Co0o0o0o0oL
i thing the subject is enough to describe the attached file !
check it out and replay your opinion
Cya
Subject: Fw:
You're gonna love it ;)
delete it after reading , Professor :P
Subject: Heeeeeeeeeeeeeeeey
i've got this surprise from a friend :)
it really deserves a few minutes of your time.
Bye
Subject: Wussaaaaaaaap?
Should i email u first to email me?
u don't know how much ur emails mean to me.
i wish u like this email and plzz don't forget me :)
Bye
Subject: WoW But not for NoW
coz i couldn't get the other part of it ,
any way , check it out
having alil thing is better than nothing :P
Subject: y0 Ain't Got Shyt !
All u can get is burning ur self
Coz all we can do is to watch, nothing for us to touch :(
Subject: Why Do We FOk?
let me answer ,,,
hummmmmmmmm
Coz we Burn Our selves by watching ******** ** like the one i attached :P
Subject: Hi
i'v got it from a group called
it really fits us , check it out carefully :)
bye
Subject: Q <--- what does it look likt?
Hummm , It looks like something men can't live without
ha? did u get it?
if not , enjoy ur Eyes by Seeing it ;) this one is deferent!
Subject: Hiiiii
you seem to be mad @ me coz i didn't send u anything for along time,
i didn't forget u , but i was busy , i've got all of ur emails
thanx :) and i hope u accept this one as an apology.
Subject: Heeelllooo , anybody home????
i tried many times to send u this email but ur account was out of storage as i think
any way , make sure that i didn't and i won't forget u :)
Cya Forgotten :P
Subject: Why did u send me this shyt?
THANX BUT I DON'T ACCEPT SEX MATERIALS FROM STRANGERS.
I SAW THEM N I WONDERED HOW U COULD
DO SO ?
I REATTACHED THE SHYT U SENT
PLEASE DON'T EMAIL ME ,
Subject: Re:Hi
No thanx , keep it for you :) + _CR_LF_ + Bye
Subject: Lo0o0o0o0o0o0o0o0o0o0o0o0oL
Measure your intelligence , the power of your mind and the speed of
your reaction by answering several Qs , don't forget to send me your mark.
I took 3.5/10 :P
Let's see who is more intelligent than the other!
Good Luck
Subject: hurry up !!!
this is the last one i could find ,
Don't forget , send me the project in a zipped file :)
Bye
Subject: To Early To Have S*x!
When i saw it i didn't believe that she was only 8 yrs old.
but when i saw the blood and heard the voice of her :( i got Shocked
Subject: Fw:Send it to all of the ppl u love
Body: Don't Believe ur self, I don't Love Ya :P
But i Don't know why i sent this to u.
Make use of it , Bye ;)
Subject: Surpise !
I'm in a harry ,
Send me any clip with voice like the one i attached .
And stop sending the booooring pictures
Cya
Subject: For your elegant Taste
Body: elegant ppl should satisfy thier taste with elegant things ;)
Subject: Again?
I sent this email to another body :P and he replayed saying Thanx !!
i always write your email wrongly.
Hummm, if u like it replay to me , and don't forget to write ur signature to make
sure that i didn't send the email to a wrong one ;)
Bye
Subject: Who are you??????
Hi
i'm fine , thanx for asking :)
and thanx for the nice attachements.
but unfortunately, i don't remember you
i will be waiting for u emaill to remind me of your self.
Hummm , i hope u accept this show as an apology.
bye
Subject: The Spanish Beauty
it's a mix of the Arabian beauty & the european grace !
satisfy your eyes with the beauty that u have never seen ;)
Subject: I've Got it :)
Body: I've got it from KaZaA network ,
it seems not to be full but that's all i could find :(
bye
Subject: Helloooooooo
I've got your email , but you forgot to upload the attachments.
Don't be selfish , i sent you all the files i have, send me anything :(
bye
Subject: If u are booooored ...
Body: i found it in my Recycled , i know u love this kind of thing ;)
From: Dispatch@McAfee.com
Subject: Virus Alert !
Dear User,
McAfee.com Has recieved an infected message from you .We believe that you are
infected with Win32/HaWawi@MM Virus.
Please download the attached tool (ToolAv01w32) which will help you to clean your PC.
For more information :*Create an email addressed to virus_research@nai.com.

 ~U Your name, phone number, address, and email address

 ~U Operating system

 ~U Antivirus program

 ~U Anti virus engine version (e.g. 4.1.20)

 ~U DAT file version (e.g. 4.0.4140)

 ~U Browser version

 ~U Nature of problem

The attachment names are randomly chosen from a list filenames:

Hot_Show.pif
Short_vClip.pif
Beauty_VS_Your_FaCe.pif
Endless_life.pif
Hearts_translator.pif
Shakiraz_Big_ass.pif
Sweet_but_smilly.pif
Broke_ass.pif
Lo0o0o0o0oL.pif
Gurls_Secrets.pif
Tedious_SeX.pif
Leaders_Scandals.pif
HaWawi_N_Hawaii.pif
Come_2_Cum.pif
Tears_of_Happiness.pif
White_AmeRica.pif
Famous_PpL_N_Bad_Setuations.pif
XxX_Mpegs_Downloader.pif
Teenz_Raper.pif
Real_Magic.pif
The_Truth_of_Love.pif
unfaithful_Gurls.pif
How_to_improve_ur_love.pif
AniMaL_N_Burning_Ladies.pif
Aint_it_Funny.pif
ToolAv01w32.pif
Spreading through Kazaa

If the compromised computer has Kazaa file sharing client installed the worm copies itself to the shared file folder with the following names:

Hot_Show.pif
Short_vClip.pif
Beauty_VS_Your_FaCe.pif
Endless_life.pif
Hearts_translator.pif
Shakiraz_Big_ass.pif
Sweet_but_smilly.pif
Broke_ass.pif
Lo0o0o0o0oL.pif
Gurls_Secrets.pif
Tedious_SeX.pif
Leaders_Scandals.pif
HaWawi_N_Hawaii.pif
Come_2_Cum.pif
Tears_of_Happiness.pif
White_AmeRica.pif
Famous_PpL_N_Bad_Setuations.pif
XxX_Mpegs_Downloader.pif
Teenz_Raper.pif
Real_Magic.pif
The_Truth_of_Love.pif
unfaithful_Gurls.pif
How_to_improve_ur_love.pif
AniMaL_N_Burning_Ladies.pif
Aint_it_Funny.pif
ToolAv01w32.pif

Using these catchy names the worm tries to bully other users into downloading and running the infected file.

System infection

When Holar.H infects a system it drops two files to the Windows System folder:

- explore.exe - worm body (with System and Hidden attributes)
- SMTP.ocx - SMTP extension for Visual Basic Applications

The worm then adds a registry value to ensure that it will be started when Windows starts:

'HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\run\Explore'

Payload

Holar keeps a counter in the registry value 'HKEY_CURRENT_USER\DeathTime'. The counter is incremented every time the worm is run which is every system startup in this case. If it reaches 30 the worm attempts to delete all files from drive C: and displays the following messages in several dialog boxes:

LOVE
PEACE
HOME
HAPPINESS
These things Can't be Found as long as Bush & Jews Are aLive :)
Made By ZaCker In
2003-03-30 :)

After displaying the last message box the system is restarted.