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Description:
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. Using its own email engine makes it easier for this worm to send out its email messages.
This email message 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 new account password is approved
• Your password has been successfully updated
• Your password has been updated
• Your Account is Suspended
• Your Account is Suspended For Security Reasons
Message body: (any of the following)
===========
Dear user {varies},
You have successfully updated the password of your {random} account.
If you did not authorize this change or if you need assistance with your account, please contact {random} customer service at: {random}
Thank you for using {varies}!
The {varies} Support Team
+++ Attachment: No Virus (Clean)
+++ {varies} Antivirus - www.{varies}
===========
Dear user {varies},
It has come to our attention that your {random} User Profile ( x ) records are out of date. For further details see the attached document.
Thank you for using {varies}!
The {varies} Support Team
+++ Attachment: No Virus (Clean)
+++ {varies} Antivirus - www.{varies}
===========
Dear {varies} Member,
We have temporarily suspended your email account {varies}.
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 {random} account.
Sincerely,The {varies} Support Team
+++ Attachment: No Virus (Clean)
+++ {varies} Antivirus - www.{varies}
===========
Dear {varies} 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 {varies} Support Team
+++ Attachment: No Virus found
+++ {varies} Antivirus - www.{varies}
(Note: {Varies} refers to changing values, including the domain of the affected system, hardcoded user names, and the like, in the message body.)
Attachment: ( A .ZIP file that contains a copy of itself with any combination of the following file names and extensions:)
File name:
• {random}
• 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:
• DOC
• HTM
• TXT
(The file name extension of the archived file is followed by 70 empty spaces, a dot, and any of the following extensions:)
• BAT
• CMD
• EXE
• SCR
• PIF
It gathers email addresses from Windows Address Book (WAB). It may also generate email addresses by using a list of common names, such as andrew, julie, and michael, and any of the domain names of the previously gathered addresses. It then sends out its email message to these gathered and generated email addresses.
This worm has backdoor capabilities. It opens a random port without informing the user, allowing a remote user to access and perform malicious commands on the affected machine. Some of these commands may provide remote users virtual control over the affected machine, thus compromising system security.
It also prevents affected users from accessing several antivirus Web sites by modifying the HOSTS file, which contains hostname to IP address mappings. When an affected machine tries to access certain antivirus Web sites, it is instead redirected to itself.
It also terminates several processes, most of which are related to antivirus and security programs. This routine makes an affected system more vulnerable to malicious attacks.
For additional information about this threat, see:
Solution
Technical Details
Description created: Jul. 13, 2005 11:27:11 AM GMT -0800
Description updated: Jul. 14, 2005 11:10:34 AM GMT -0800
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