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prepreinstaller_win.exe

The application prepreinstaller_win.exe has been detected as a potentially unwanted program by 12 anti-malware scanners. 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 d2bn845ieoq8t2.cloudfront.net.
MD5:
ed10a751f47df014c778c7e1be232d4d

SHA-1:
869111c3a23f85982b74f265c016c400288f2b15

SHA-256:
147f099fd4431dc81812e0649a58a236297fea4a32434807cbc64b540314f1e1

Scanner detections:
12 / 68

Status:
Potentially unwanted

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

Analysis date:
11/24/2024 4:52:41 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:SaliCode
160326-0

AVG
Win32/Sality
2015.0.4355

Dr.Web
Win32.Sector.30
9.0.1.05190

Emsisoft Anti-Malware
Win32.Sality
11.5.0.6191

ESET NOD32
Win32/Sality.NBA virus
7.0.302.0

F-Prot
W32/Sality.gen2
4.6.5.141

F-Secure
Win32.Sality.3
5.15.96

Kaspersky
Virus.Win32.Sality
15.0.0.562

McAfee
Program.Artemis!4FC1BECC9F25
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.217.1958.0

Norman
Win32.Sality.3
02.04.2016 17:35:19

VIPRE Antivirus
Threat.4758034
48690

File size:
308 KB (315,392 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:
4/10/2016 4:51:52 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:zGT08mkejSMuNT1YEmrea9W71OBcdaFlLgpL7Qz06Kx3st3TJwxeuxlMD5:Dgse4EOkaCLm06Kx3stFwxeuTO

Entry address:
0x114FD

Entry point:
86, EF, 81, F9, FD, B8, 00, 00, 75, 03, 1C, 66, 4D, 41, 0F, CA, 81, C7, 61, 72, 00, 00, 3C, 8F, 81, EF, A8, 01, 00, 00, 3D, F8, 68, D9, DC, 41, E8, 0C, 00, 00, 00, 0F, BE, CE, C6, C5, 8A, 81, FB, F1, 00, 00, 00, F7, C0, BC, 6A, A5, D0, F6, C2, B9, 0F, CD, 30, E9, 8D, 03, 0F, AF, FB, 8B, D0, 8D, 35, C8, 8E, 80, 05, 03, DA, B1, 84, 5A, 0F, 6E, D2, 69, FF, BF, 88, 67, 43, 81, F9, BE, C2, 00, 00, 74, 01, 48, F7, C1, 41, 6B, 6C, 79, 1D, 2D, 9B, CC, 4B, BB, 8E, B7, F2, FF, FE, C4, 81, C3, D1, 57, 0D, 00, 85, D3...
 
[+]

Entropy:
7.3310

Code size:
105 KB (107,520 bytes)

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

http://d2bn845ieoq8t2.cloudfront.net/prepreinstaller_win.exe

Remove prepreinstaller_win.exe - Powered by Reason Core Security
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