Neveg.C

Classification

Category:Malware

Type:-

Platform:-

Aliases:

Neveg.C, I-Worm.Neveg.c, W32/Neveg.C

Summary

Neveg.C is a mass-mailing worm with Peer-to-Peer spreading capabilities.

Removal

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.

Technical Details

Neveg.C arrives in email as a packed executable.

System Infection

When the worm's file is run, it copies itself as services.exe to Windows System folder and creates a startup key for this file in the Registry:

 [HKLM\ Software\Microsoft\Windows\CurrentVersion\Run] of [HKCU\ Software\Microsoft\Windows\CurrentVersion\Run]

The key value name will be chosen from:

 BuildLab RegDone ccApps Microsoft Visual SourceSafe TEXTCONV FriendlyTypeName .Prog WMAudio

And it will point "%SystemDir%\ services.exe"

%SystemDir% represents the Windows System folder name, for example C:\Windows\System32 on Windows XP systems.

The icon for the program will look like this:

Email Propagation

Neveg.C scans the hard drive to collect email addresses of possible victims. Files with the following extensions are checked:

 .xml .xls .wsh .wab .vbs .uin .txt .tbb .stm .shtm .sht .rtf .pl .php .oft .ods .nch .msg .mmf .mht .mdx .mbx .jsp .html .htm .eml .dhtm .dbx .cgi .cfg .asp .adb

Neveg.C spreads itself in emails with the following attachment filenames:

 office.exe notes.exe doom3demo.exe resume.exe files.exe request.exe info.exe details.exe result.exe results.exe install.exe setup.exe test.exe google.exe se_files.exe

Propagation Through Peer-to-Peer Clients

Neveg.C is capable of spreading to shared folders of Peer-to-Peer clients. It will look for folders with names containing strings from the following list:

 shared files shar my shared folder mule morpheus lime kazaa icq http htdocs ftp download donkey bear upload

The worm copies itself there with the following names:

 XXX hardcore images.exe Windows Sourcecode update.doc.exe Windown Longhorn Beta Leak.exe WinAmp 6 New!.exe WinAmp 5 Pro Keygen Crack Update.exe Serials.txt.exe Porno, sex, oral, anal cool, awesome!!.exe Porno Screensaver.scr Porno pics arhive, xxx.exe Opera 8 New!.exe Microsoft Windows XP, WinXP Crack, working Keygen.exe Microsoft Office XP working Crack, Keygen.exe Microsoft Office 2003 Crack, Working!.exe Matrix 3 Revolution English Subtitles.exe KAV 5.0.exe Kaspersky Antivirus 5.0.exe Ahead Nero 7.exe Adobe Photoshop 9 full.exe ACDSee 9.exe

The worm also tries to launch a DDoS attack against a series of websites, which apparently all belong to one German company.