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prepreinstaller_win2.exe

The executable prepreinstaller_win2.exe has been detected as malware by 9 anti-virus scanners. This is a setup program which is used to install the application. According to the AV engines that detect this, it is a detection for a file infected by members of the Win32/Ramnit malware family and may drop and load other malware. The file has been seen being downloaded from d2wc9pvpe6tfks.cloudfront.net.
MD5:
e2f6dcdf190e2d6540b252df5591f8d3

SHA-1:
5daddb84b6cb6b834f74c15ee1e9e677c9474c77

SHA-256:
5da1396b4776d39dd2227084a919e4ed38955bd9882f46165411a5df4235289c

Scanner detections:
9 / 68

Status:
File is infected by a Virus

Explanation:
The file is infected by a polymorphic file infector virus.

Analysis date:
12/31/2024 11:45:00 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

avast!
Win32:RmnDrp
160216-0

Dr.Web
Win32.Rmnet.12
9.0.1.05190

ESET NOD32
Win32/Ramnit.H virus
8.0.319.0

F-Prot
W32/Ramnit.E
4.6.5.141

F-Secure
Win32.Ramnit.N
5.15.21

Kaspersky
Virus.Win32.Nimnul
15.0.0.562

McAfee
Virus.W32/Virut.n.gen
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.215.86.0

Norman
Win32.Ramnit.N
29.02.2016 05:46:54

File size:
1.2 MB (1,216,951 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\prepreinstaller_win2.exe

File PE Metadata
Compilation timestamp:
7/31/1996 11:34:36 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:qK1/UzyPIi4NdMuaeis5OJT7NNvm7W3ei0DGpHrW7At9hgPtu:qKSOPIi4Nyuaer50T7e7dfid9hgo

Entry address:
0x57000

Entry point:
60, E8, 00, 00, 00, 00, 5D, 8B, C5, 81, ED, A8, A6, 01, 20, 2B, 85, 0F, AE, 01, 20, 89, 85, 0B, AE, 01, 20, B0, 00, 86, 85, 40, B0, 01, 20, 3C, 01, 0F, 85, BC, 01, 00, 00, 83, BD, 3B, AF, 01, 20, 00, 74, 33, 83, BD, 3F, AF, 01, 20, 00, 74, 2A, 8B, 85, 0B, AE, 01, 20, 2B, 85, 3B, AF, 01, 20, 8B, 00, 89, 85, 78, AF, 01, 20, 8B, 85, 0B, AE, 01, 20, 2B, 85, 3F, AF, 01, 20, 8B, 00, 89, 85, 7C, AF, 01, 20, EB, 61, 83, BD, 43, AF, 01, 20, 00, 74, 58, 8B, 85, 0B, AE, 01, 20, 2B, 85, 43, AF, 01, 20, FF, 30, 8D, 85...
 
[+]

Entropy:
7.7423

Packer / compiler:
ASPack v1.08.04

Code size:
97 KB (99,328 bytes)

The file prepreinstaller_win2.exe has been seen being distributed by the following URL.

http://d2wc9pvpe6tfks.cloudfront.net/prepreinstaller_win2.exe

Remove prepreinstaller_win2.exe - Powered by Reason Core Security
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