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prepreinstaller_win.exe

The executable prepreinstaller_win.exe has been detected as malware by 9 anti-virus scanners. This is a setup program which is used to install the application. Infected by an entry-point obscuring polymorphic file infector which will create a peer-to-peer botnet and receives URLs of additional files to download. The file has been seen being downloaded from d23d12h09rr1pi.cloudfront.net.
MD5:
c4d68244cf689b89692e3f9ed2e662a8

SHA-1:
d45cbf1ced71ae09caef5b133de00c706ffe190c

SHA-256:
fb2796496283fe8304a3aad6b2c551446b7d3cfb12008a72d2bd2443aaf65a3c

Scanner detections:
9 / 68

Status:
File is infected by a Virus

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

Analysis date:
11/25/2024 1:33:11 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Kukacka
160518-2

AVG
Win32/Sality
2015.0.4568

Dr.Web
Win32.Sector.30
9.0.1.05190

Emsisoft Anti-Malware
Win32.Sality
11.5.0.6191

ESET NOD32
Win32/Sality.NBA virus
8.0.319.0

F-Prot
W32/Sality.gen2
4.6.5.141

Kaspersky
Virus.Win32.Sality
15.0.0.562

Microsoft Security Essentials
Threat.Undefined
1.223.968.0

Norman
Win32.Sality.3
28.05.2016 15:32:18

File size:
351 KB (359,424 bytes)

File type:
Executable application (Win32 EXE)

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

File PE Metadata
Compilation timestamp:
5/26/2016 8:58:41 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:5zKwZmAS0gpMyTghi472f0NW6B0u4ulLeQM54uJrbxStbZUu9:5zKmZJqkSq0PuVeQM6uuJSy

Entry address:
0xCC58

Entry point:
60, EB, 09, 69, C0, 53, C6, 4B, 51, B7, 13, 49, EB, 08, 3B, CF, 69, F1, 32, 68, 0E, E8, 3D, A4, 65, 00, 00, 77, 02, 86, E9, 77, 01, 45, 71, 07, 0F, AF, C0, FE, CE, 86, E5, 78, 08, C7, C0, 24, 51, 1A, A2, B6, 9A, 81, F9, 27, FB, 00, 00, 74, 02, 88, E8, EB, 0A, 84, D1, 13, D5, 8D, 05, CB, 34, 85, 1A, 6A, 00, 5D, 69, D6, 15, 60, C5, F8, 8B, D2, 0B, EE, C7, C2, E6, 08, C6, 00, 8D, 05, 64, 00, 16, 51, 8B, CD, F7, C5, FE, BA, 32, 3F, 0C, 49, 0F, AF, C0, 69, C7, C7, E5, C5, 17, 8B, D9, FF, CA, 85, CB, 8B, C3, 0F...
 
[+]

Code size:
164.5 KB (168,448 bytes)

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

http://d23d12h09rr1pi.cloudfront.net/prepreinstaller_win.exe

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