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Virus:DR/Microjoin.J
Date discovered:13/12/2012
Type:Dropper
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:28.741 Bytes
MD5 checksum:55B8C0F3A89562DA92A76B1B43CC1128
VDF version:7.11.53.216

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Mcafee: MultiDropper-IY
   •  Kaspersky: Trojan-Dropper.Win32.Microjoin.u
   •  Grisoft: Dropper.Small.12.E
   •  Bitdefender: Trojan.Dropper.Microjoin.U


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Drops malicious files

 Files The following files are created:

%TEMPDIR%\3.exe Furthermore it gets executed after it was fully created. Further investigation pointed out that this file is malware, too. Detected as: TR/Spy.Goldun.BF.5

%TEMPDIR%\dima2.exe Furthermore it gets executed after it was fully created. Further investigation pointed out that this file is malware, too. Detected as: TR/Dldr.Small.asy.2

Description inserted by Andrei Gherman on Wednesday, October 19, 2005
Description updated by Andrei Gherman on Thursday, October 20, 2005

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