Email Worm Spreading Like Wildfire – W32.Imsolk/VBMania Variant

Keep on Guard!


Oh this is a throw back to the 90s, a self-replicating e-mail worm based around a malicious screensaver (.scr) that sends itself to everyone in your address book. It seems this one is spreading fast though with hundreds of thousands of infections.

Reminds of the heydays of ILOVEYOU and Anna Kournikova.

A fast-moving email worm that began spreading on Thursday has been able to affect hundreds of thousands of computers worldwide, anti-virus provider Symantec warned.

The email arrives with the subject “Here you have.” An executable screensaver that’s disguised as a PDF document then tries to send the same message to everyone listed in the recipient’s address book. The .scr file is a variation of the W32.Imsolk.A@mm worm Symantec discovered last month.

In addition to spreading through email, it can propagate through mapped drives, autorun and instant messenger. It also has the ability to disable various security programs.

It’s slightly more advanced than the old versions though with the ability to spread through instant messaging (probably MSN Live Messenger) and also disable security programs.

Plus it’s harder to scan for as the malicious screensaver isn’t actually attached to the email but downloaded from a remote source, and from early reports – multiple remote sources.

The worm is a throwback to attacks not seen in almost a decade, when the Anna Kournikova and I Love You attacks wreaked havoc on email systems worldwide. The Here You Go worm appears to different in that the malicious payload is downloaded from a page on members.multimania.com, rather than being attached to the email. That could make efforts to eradicate the worm easier.

Then again, McAfee said multiple variants of the worm appear to be spreading, so it’s not yet clear that the malicious screensaver is hosted by a single source.

There’s more info available here:

Symantec – New Round of Email Worm, “Here you have”
McAfee – Widespread Reporting of “Here you have” Virus (aka W32/VBMania@MM)

Source: The Register

Posted in: Malware

, ,


Latest Posts:


OSSIM Download - Open Source SIEM Tools & Software OSSIM Download – Open Source SIEM Tools & Software
OSSIM is a popular Open Source SIEM or Security Information and Event Management (SIEM) product, providing event collection, normalization and correlation.
What You Need To Know About KRACK WPA2 Wi-Fi Attack What You Need To Know About KRACK WPA2 Wi-Fi Attack
The Internet has been blowing up in the past week about the KRACK WPA2 attack that is extremely widespread and is a flaw in the Wi-Fi standard itself.
Spaghetti Download - Web Application Security Scanner Spaghetti Download – Web Application Security Scanner
Spaghetti is an Open-source Web Application Security Scanner, it is designed to find various default and insecure files, configurations etc.
Taringa Hack - 27 Million User Records Leaked Taringa Hack – 27 Million User Records Leaked
The Taringa hack is actually one of the biggest leaks of the year with 27 million weakly hashed passwords breached, but it's not often covered in the West.
A2SV - Auto Scanning SSL Vulnerability Tool For Poodle & Heartbleed A2SV – Auto Scanning SSL Vulnerability Tool For Poodle & Heartbleed
A2SV is a Python-based SSL Vulnerability focused tool that allows for auto-scanning and detection of the common and well-known SSL Vulnerabilities.
VHostScan - Virtual Host Scanner With Alias & Catch-All Detection VHostScan – Virtual Host Scanner With Alias & Catch-All Detection
VHostScan is a Python-based virtual host scanner that can be used with pivot tools, detect catch-all scenarios, aliases and dynamic default pages.


2 Responses to Email Worm Spreading Like Wildfire – W32.Imsolk/VBMania Variant

  1. d3m4s1@d0v1v0 September 10, 2010 at 12:41 pm #

    Sweet! it has been a long time since those mails in the 90’s hehehe. Thanks for the info, now I have alerted the network administrators of my company.
    As allways, great info!

  2. James September 17, 2010 at 8:44 pm #

    McAfee has a free tool I reviewed, wrote about it here:
    http://mjameshall.com/web/journal/vbmania/