Win32/Bewymids [Threat Name] go to Threat

Win32/Bewymids.D [Threat Variant Name]

Category trojan
Size 81920 B
Detection created Apr 19, 2015
Detection database version 11499
Aliases Trojan:Win32/Bewymids!rfn (Microsoft)
  Infostealer.Hoardy (Symantec)
  DLOADER.Trojan (Dr.Web)
Short description

The trojan serves as a backdoor. It can be controlled remotely.

Installation

The trojan does not create any copies of itself.


The trojan is probably a part of other malware.


The trojan may set the following Registry entries:

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Internet Explorer\­PhishingFilter]
    • "Enabled" = 1
    • "ShownVerifyBalloon" = 3
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Internet Explorer\­Main]
    • "Check_Associations"  = "no"
    • "Start Page" = "about:blank"
    • "DisableFirstRunCustomize" = 2
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Internet Settings]
    • "IEHardenIENoWarn" = 0
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Internet Settings\­ZoneMap]
    • "IEharden" = 0
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Internet Explorer\­Recovery]
    • "AutoRecover" = 2
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Internet Explorer\­Main]
    • "DEPOff" = 1
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Internet Settings\­Zones]
    • "2500" = 3
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Internet Settings]
    • "WarnonZoneCrossing" = 0
    • "WarnOnPostRedirect" = 0
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Internet Settings]
    • "ProxyEnable" = 1
    • "ProxyServer" = "%variable1%"
    • "AutoConfigURL" = "%variable2%"

The trojan may create the following files:

  • %appdata%\­Microsoft\­windows\­CManger\­wuacult.txt
  • %appdata%\­Microsoft\­windows\­CManger\­%variable3%

A string with variable content is used instead of %variable1-3% .

Information stealing

The trojan collects the following information:

  • computer name
  • information about the operating system and system settings
  • volume serial number

The trojan attempts to send gathered information to a remote machine.

Other information

The trojan acquires data and commands from a remote computer or the Internet.


The trojan contains a list of (16) URLs. The HTTP protocol is used in the communication.


It may perform the following actions:

  • download files from a remote computer and/or the Internet
  • run executable files
  • upload files to a remote computer
  • send gathered information

The trojan executes the following files:

  • %appdata%\­Microsoft\­windows\­CManger\­smc.exe

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