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The Internet threat alert status is currently normal. At present, no major epidemics or other serious incidents have been recorded by Kaspersky Lab’s monitoring service. Internet threat level: 1

Trojan-Dropper.Win32.Agent.bot

Detected Aug 13 2007 12:13 GMT
Released Aug 13 2007 12:13 GMT
Published Dec 14 2007 15:53 GMT

Technical Details
Payload
Removal instructions

Technical Details

This Trojan is designed to install and launch other malicious programs on the victim machine without the knowledge or consent of the user. It is a Windows PE EXE file. It is 70656 bytes in size.


Payload

When launching, the Trojan extracts the following files from its body:

%Temp%\pinch3.exe - this file is 48057 bytes in size. It will be detected by
Kaspersky Anti-Virus as Trojan-PSW.Win32.LdPinch.bgj;
%Temp%\4571-1.jpg (15267 bytes in size)

These files are then launched for execution.


Removal instructions

If your computer does not have an up-to-date antivirus, or does not have an antivirus solution at all, follow the instructions below to delete the malicious program:

  1. Use Task Manager to terminate the Trojan process.
  2. Delete the original Trojan file (the location will depend on how the program originally penetrated the victim machine).
  3. Delete the following files:
    %Temp%\pinch3.exe
    %Temp%\4571-1.jpg
  4. Update your antivirus databases and perform a full scan of the computer (download a trial version of Kaspersky Anti-Virus).

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Trojan-Dropper

Trojan-Dropper programs are designed to secretly install malicious programs built into their code to victim computers.

This type of malicious program usually save a range of files to the victim’s drive (usually to the Windows directory, the Windows system directory, temporary directory etc.), and launches them without any notification (or with fake notification of an archive error, an outdated operating system version, etc.).

Such programs are used by hackers to:

  • secretly install Trojan programs and/or viruses
  • protect known malicious programs from being detected by antivirus solutions; not all antivirus programs are capable of scanning all the components inside this type of Trojans.

Other versions

Aliases

Trojan-Dropper.Win32.Agent.bot (Kaspersky Lab) is also known as:

  • Trojan: MultiDropper-JD (McAfee)
  • Mal/Generic-A (Sophos)
  • Trojan.Dropper-2540 (ClamAV)
  • Heuristic.WinPE-Statistical (Panda)
  • W32/Trojan.BSPL (FPROT)
  • PWS:Win32/Ldpinch.gen!A (MS(OneCare))
  • Trojan.MulDrop.7963 (DrWeb)
  • Win32/TrojanDropper.Delf.NRZ trojan (Nod32)
  • Trojan.Dropper.Agent.BOT (BitDef7)
  • Trojan.DR.Agent.JLDL (VirusBuster)
  • Trojan.MulDrop (Ikarus)
  • Dropper.Generic.NOT (AVG)
  • TR/Dropper.Gen (AVIRA)
  • Infostealer (NAV)
  • Agent.OILW (Norman)
  • Trojan.PSW.Win32.LdPinch.bgj (Rising)
  • Trojan-Dropper.Win32.Agent.bot [AVP] (FSecure)
  • TROJ_Generic.DIT (TrendMicro)
  • Trojan.Malware (Sunbelt)
  • Trojan.DR.Agent.JLDL (VirusBusterBeta)