W32.Hawawi.Worm

When W32.Hawawi.Worm is executed, it does the following:

1. Creates the files:
   • %Temp%\<Random number>.exe
   • %System%\Media Player.exe
   • %System%\SmtpMailer.dll
   • %System%\Sys32 .exe
   • C:\Msg.htm
     
     or:
   • %System%\explore.exe
   • %System%\SMTP.ocx
     
     
     
2. Adds the value:
   
   Ioadqm %SysDir%\Media Player.exe
   
   or
   
   Explore %SysDir%\explore.exe
   
   to the registry key:
   
   HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
   
3. Shares the System folder under KaZaA and copies itself as many different filenames, some of which are:
   • Aint_it_Funny.pif
   • AniMaL_N_Burning_Ladies.pif
   • Asian_girls.pif
   • Beauty_VS_Your_FaCe.pif
   • Black_babes.pif
   • Endless_life.pif
   • Famous_PpL_N_Bad_Setuations.pif
   • Gurls_Secrets.pif
   • HardCore_Amature_Naked_nude.pif
   • HaWaWi.pif
   • HaWawi_N_Hawaii.pif
   • Hearts_translator.pif
   • Hot_Show.pif
   • Hot_teen_Virgin.pif
   • How_to_improve_ur_love.pif
   • Leaders_Scandals.pif
   • Lo0o0o0o0oL.pif
   • Music_downloader.pif
   • Real_Magic.pif
   • Short_vClip.pif
   • Show_clip_mpeg_movie.pif
   • Sweet_but_smilly.pif
   • Tears_of_Happiness.pif
   • The_Truth_of_Love.pif
   • unfaithful_Gurls.pif
   • White_AmeRica.pif
   • XxX_Mpegs_Downloader.pif
     
     
4. Emails itself using its own SMTP server. If the worm cannot find a "From" address, the email messages will be from one of the following:
   
   "Webmaster@Friends.com"
   "Dispatch@McAfee.com"
   "Friends@Internet.com"

Email routine details

The email message can have many different random subject lines and messages. All messages have a .pif attachment. Some of the possible email messages are as follows:

Subject: '''*< Love Speaks it all >*'''
Message: 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
Message: i thing the subject is enough to describe the attached file ! check it out and replay your opinion Cya

Subject: Fw:
Message: You're gonna love it ;) delete it after reading , Professor :P

Subject: Heeeeeeeeeeeeeeeey
Message: i've got this surprise from a friend :) it really deserves a few minutes of your time.  Bye

Subject: Wussaaaaaaaap?
Message: 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 :)

Subject: WoW But not for NoW
Message: coz i couldn't get the other part of it , any way , check it out
having alil thing is better than nothing :P

Subject: Why Do We FOk?
Message: let me answer ,,, hummmmmmmmm Coz we Burn Our selves by watching ********** like the one i attached :P

Recommendations

Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

• Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
• Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
• Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
• Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
• Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
• Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
• If a threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
• Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
• Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
• Isolate compromised computers quickly to prevent threats from spreading further. Perform a forensic analysis and restore the computers using trusted media.
• Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
• If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
• For further information on the terms used in this document, please refer to the Security Response glossary.

Summary