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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 d1hnrgp9e8h8tb.cloudfront.net.
MD5:
4713648cc83f3d5a5eadc5df2f28deae

SHA-1:
70192747d47681bfbada5bf1af166003546acd60

SHA-256:
781b85ce4fdca09ef8c60063922256b6c9b2e460782e0572c3d06687fbc6cd03

Scanner detections:
9 / 68

Status:
File is infected by a Virus

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

Analysis date:
12/27/2024 5:35:19 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Kukacka
160414-2

AVG
Win32/Sality
2015.0.4591

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/Virut.AI!Generic
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:
343.5 KB (351,744 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:
5/22/2016 10:29:09 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:RP3ELJ8OX2xV9FqQ9pR4zSSKEoULweSADbelLwoCG007it7y02x4Q:RP3RWO8+SGvCeVwo/0cA2xV

Entry address:
0xCDD8

Entry point:
60, 0B, C1, 4B, 8A, EA, 68, 9B, 07, CB, 00, 69, FE, 0B, C5, 33, 0F, 3C, 4A, 47, 89, FF, 69, F1, 8A, 66, 96, A9, EB, 02, 8B, EB, 3B, DD, C6, C1, 91, 86, F7, F3, 0F, AF, F9, 6B, C0, 00, EB, 08, FE, C1, 69, FD, 44, D1, 94, 3D, B9, 3A, C4, 9F, 07, 0F, BE, EC, 49, 87, D2, FF, CD, 13, E8, BF, 24, 20, 06, 00, EB, 0A, C7, C6, A7, 8D, 34, 0E, 88, E9, 89, C6, 81, F7, 72, 95, 00, 00, 8B, F1, 69, EB, 16, 08, 70, A3, 81, EF, 55, B5, 06, 00, 3B, FB, 70, 05, BB, 23, 20, EC, C0, 03, C7, 69, EF, 61, 3B, CC, 72, 3A, DF, 87...
 
[+]

Code size:
165 KB (168,960 bytes)

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

http://d1hnrgp9e8h8tb.cloudfront.net/prepreinstaller_win.exe

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