W32/Mytob.PZ is a worm. This worm is a variant of W32/Mytob.A. The worm will infect Windows systems and spreads through email.

The subject of the infected mail will be any one of the following;

Your password has been updated
Your new account password is approved
You have successfully updated your password
Your password has been successfully updated

The body of the infected mail will be any one of the following;

Dear [random] Member,
We have temporarily suspended your email account [random].
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 [random] Support Team

+++ Attachment: No Virus (Clean)
+++ [random] Antivirus - www.[domain name]

Dear user [random],
It has come to our attention that your [random] User Profile ( x ) records are out of date.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 [random]!
The [random] Support Team

+++ Attachment: No Virus (Clean)
+++ [random] Antivirus - [domain name]

Dear [random] 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] Support Team

+++ Attachment: No Virus found
+++ [random] Antivirus - www.[domain name]

Dear user [random],
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 {random}!
The [random] Support Team

+++ Attachment: No Virus (Clean)
+++ [random] Antivirus - www.[domain name]

The infected attachment will be any one of the following;

account-password
accepted-password
email-password
approved-password
new-password
updated-password
password

The extension of the infected attachment will be any of the following;

txt, doc, tmp and htm

To propagate itself, the worm scans the files having the following extensions and collects all the available email addresses from the infected system.

adb, asp, cgi, dbx, htm, jsp, php, pl, sht, tbb, wab and xml.

The worm mails itself to these addresses using its own SMTP engine.

The worm tries to terminate some of the security related processes.

The worm also has backdoor capabilities that connect to IRC Internet Relay Chat server using variable ports.

This worm first appeared on April 19, 2006.

 Other names of W32/Mytob.PZ Worm:

This Worm is also known as WORM_MYTOB.PZ .