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Description:
Similar to other MYTOB variants, this memory-resident worm propagates by sending a copy of itself as an attachment to an email message, which it sends to target recipients using its own Simple Mail Transfer Protocol (SMTP) engine.
The email message it sends out has the following details:
Subject: (any of the following)
•*DETECTED* Online User Violation
•Email Account Suspension
•Important Notification
•Members Support
•Notice of account limitation
•Security measures
•Warning Message: Your services near to be closed.
•You have successfully updated your password
•Your Account is Suspended
•Your Account is Suspended For Security Reasons
•Your new account password is approved
•Your password has been successfully updated
•Your password has been updated
Message body: (any of the following)
===========
Dear user {name of recipient},
You have successfully updated the password of your {email account of user} account.
If you did not authorize this change or if you need assistance with your account, please contact {random customer service name} customer service at: {random contact number}
Thank you for using {random antivirus name}!
The {random name} Support Team
+++ Attachment: No Virus (Clean)
+++ {random antivirus name} Antivirus - www.{random antivirus Web site}
===========
Dear user {name of recipient},
It has come to our attention that your {domain} User Profile ( x ) records are out of date. For further details see the attached document.
Thank you for using {random name}!
The {random name} Support Team
+++ Attachment: No Virus (Clean)
+++ {random antivirus name} Antivirus - www.{random antivirus Web site}
===========
Dear {name of recipient} Member,
We have temporarily suspended your email account {email account of user}.
This might be due to either of the following reasons:
1. A recent change in your personal information (i.e. change of address).
2. Submiting invalid information during the initial sign up process.
3. An innability to accurately verify your selected option of subscription due to an internal error within our processors.
See the details to reactivate your {email account of user} account.
Sincerely,The {random name} Support Team
+++ Attachment: No Virus (Clean)
+++ {random antivirus name} Antivirus - www.{random antivirus Web site}
===========
Dear {name of recipient} Member,
Your e-mail account was used to send a huge amount of unsolicited spam messages during the recent week. If you could please take 5-10 minutes out of your online experience and confirm the attached document so you will not run into any future problems with the online service.
If you choose to ignore our request, you leave us no choice but to cancel your membership.
Virtually yours,
The {random name} Support Team
+++ Attachment: No Virus found
+++ {random antivirus name} Antivirus - www.{random antivirus Web site}
Attachment: (any combination of the following file names and extensions)
File name:
•accepted-password
•account-details
•account-info
•account-password
•account-report
•approved-password
•document
•email-details
•email-password
•important-details
•new-password
•password
•readme
•updated-password
Extension:
•BAT
•CMD
•EXE
•PIF
•SCR
•ZIP
It gathers target email addresses from the Windows Address Book (WAB). It may also generate email addresses by using a list of names and any of the domain names of the previously gathered addresses.
This worm has backdoor capabilities. It opens various ports, allowing a remote user to access and perform malicious commands on the affected machine. The said routine provides remote users virtual control over affected systems, thus compromising system security.
It prevents affected users from accessing several antivirus and security Web sites by modifying the HOSTS file. It also terminates several processes, most of which are related to antivirus and security programs.
For additional information about this threat, see:
Solution
Technical Details
Description created: Jul. 11, 2005 7:16:59 PM GMT -0800
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