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prepreinstaller_win.exe

The executable prepreinstaller_win.exe has been detected as malware by 9 anti-virus 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 d3esux1vr4m94x.cloudfront.net.
MD5:
6da4614e5b76be7f1c344625ff721222

SHA-1:
56fb9f21d01d83bf6944ad1882264384f0f7920d

SHA-256:
dc33d5ddf3d2a4c91e879f59bb619d2e3d852de9a5856c76ba84198eb04c89b8

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 5:30:18 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Kukacka
160216-0

Dr.Web
Win32.Sector.30
9.0.1.05190

Emsisoft Anti-Malware
Win32.Sality
10.0.0.5735

ESET NOD32
Win32/Sality.NBA virus
8.0.319.0

F-Prot
W32/Virut.AI!Generic
4.6.5.141

Kaspersky
Virus.Win32.Sality
15.0.0.562

McAfee
Virus.W32/Sality.gen.z
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.213.7429.0

Norman
Win32.Sality.3
19.02.2016 10:08:15

File size:
288.5 KB (295,424 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:
2/27/2016 10:03:59 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:xK6lKEPP6LZ1q3ygjUv3T+1YbAYsOs9nCnuZyZ3jokDMrA72j:A6cEpMycRs9nCn8k3jokuAij

Entry address:
0x1184A

Entry point:
60, EB, 04, 84, DC, 84, D1, 51, 68, 00, 3F, E5, 00, 0F, C0, DB, FE, C9, 0F, CD, 81, FA, F9, A0, 00, 00, 73, 09, BA, 7B, 52, E6, 31, 0F, BA, ED, B0, C0, EA, 1F, 86, D4, 2B, FF, B5, 37, 84, D5, 3B, D9, 0F, AC, C3, 5D, 8D, 0D, F5, A7, 21, F9, C7, C3, D6, 74, 6C, F7, 0F, AF, F6, 30, DB, 80, EF, BD, 88, E9, 81, F9, 15, 64, 00, 00, 74, 09, 0F, BC, F6, 81, DA, D9, 22, 32, 12, E8, 29, 00, 00, 00, 0F, CA, 0F, BE, C8, FE, C8, 88, E9, 89, D8, 80, D2, 0F, 0F, BE, C4, D1, FF, 56, F6, C3, 8A, 5D, 85, DF, 0F, BD, D6, 4A...
 
[+]

Entropy:
6.9491

Code size:
100 KB (102,400 bytes)

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

http://d3esux1vr4m94x.cloudfront.net/prepreinstaller_win.exe

Remove prepreinstaller_win.exe - Powered by Reason Core Security
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