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| W32/MyDoom.M@mm |
Destructivity:  |
Spreading:  |
Overall risk:  |
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Detected by virus detection files published: 16 Aug 2004 |
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Virus characteristics first published: 16 Aug. 2004 |
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Virus characteristics latest update: 03 Dec. 2004 |
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Type: Worm |
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Alias: Win32.Mydoom.S [Computer Associates], W32/Mydoom.R@mm [F-secure], W32/Mydoom.s@MM [McAfee], W32/Mydoom.R.worm [Panda], W32/MyDoom-S [Sophos], W32.Mydoom.Q@mm [Symantec], WORM_RATOS.A [Trend Micro] |
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Spreading mechanism: Email |
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Overall risk: Medium |
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The following is a portion of the instant analysis done by the Norman Sandbox Technology: [ General information ] * Creating several executable files on hard-drive. * File length: 27136 bytes. [ Changes to filesystem ] * Creates file C:\WINDOWS\rasor38a.dll. * Creates file C:\WINDOWS\SYSTEM\winpsd.exe. * Deletes file C:\WINDOWS\SYSTEM\winpsd.exe. * Creates file C:\WINDOWS\winvpn32.exe. [ Changes to registry ] * Reads SMTP Email Address in key "HKCU\Software\Microsoft\Internet Account Manager\Accounts\unreal". * Creates key "HKLM\Software\Microsoft\Windows\CurrentVersion\ Explorer\ComDlg32\Version". * Creates key "HKCU\Software\Microsoft\Windows\CurrentVersion\ Explorer\ComDlg32\Version". * Creates value "winpsd"="C:\WINDOWS\SYSTEM\winpsd.exe" in key "HKLM\Software\Microsoft\Windows\CurrentVersion\Run". * Sets value "InstaledFlashhMX"="" in key "HKCU\Software\Microsoft\Internet Explorer". [ Network services ] * Looks for an Internet connection. * Connects to "CONFIGURED_DNS" on port 53 (UDP). * Downloads file from [webserver]/ispy.1.jpg as C:\WINDOWS\winvpn32.exe. * Connects to POP3 server on port 25 (TCP). * **Connects SMTP server. [ Network ] * **Uses IPHLPAPI services. [ Spreading through EMail ] * To : [Harvested addresses] * From : [SMTP address found in registry]. * Subject: photos. * Mass-mailer; spreads through SMTP. [ Process/window information ] * Will automatically restart after boot (I'll be back...). * Attemps to open C:\WINDOWS\winvpn32.exe . Write-up by Trygve Brox
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Norman is one of the world’s leading companies within the field of data security. With products for antivirus (virus control), personal firewall, antispam, and encryption, the company plays an important role in the data industry.
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