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prepreinstaller_win.exe

The executable prepreinstaller_win.exe has been detected as malware by 11 anti-virus scanners. This is a setup program which is used to install the application. Accoriding to the detections, it is a variant of Zbot (Zeus), a trojan that attempts to steal confidential information (online credentials, and banking details) from a compromised computer and send it to online criminals via a command-and-control server. The file has been seen being downloaded from drz8jtr1e8te9.cloudfront.net.
MD5:
e3ca7140c5feb9cd11888e4b5285d76f

SHA-1:
830948788390c65d529c24d0bfa75a920a70b9d7

SHA-256:
19e282fce13789d6888d4c2700df544c8605054ef1e83dbaa8479f6ff32bf69f

Scanner detections:
11 / 68

Status:
File is infected by a Virus

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

Analysis date:
11/25/2024 1:03:14 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:RmnDrp
160215-2

AVG
Win32/Zbot.G
2015.0.4530

Dr.Web
Trojan.DownLoader19.43191
9.0.1.05190

Emsisoft Anti-Malware
Win32.Ramnit.N
11.5.0.6191

ESET NOD32
Win32/Ramnit.H virus
7.0.302.0

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
1.215.664.0

Norman
Win32.Ramnit.N
29.02.2016 03:11:57

File size:
1.1 MB (1,145,806 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:
7/31/1996 11:34:36 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:nL4qElQl8ba2TDRpYI3U2pEK7/dqntoWz6ljOnRt5NxgdxnED6VoCG:nLfElM8ba2PRpYI3rGK/8nqWWMRNwauk

Entry address:
0x45000

Entry point:
60, E8, 00, 00, 00, 00, 5D, 8B, C5, 81, ED, A8, A6, 03, 20, 2B, 85, 0F, AE, 03, 20, 89, 85, 0B, AE, 03, 20, B0, 00, 86, 85, 40, B0, 03, 20, 3C, 01, 0F, 85, BC, 01, 00, 00, 83, BD, 3B, AF, 03, 20, 00, 74, 33, 83, BD, 3F, AF, 03, 20, 00, 74, 2A, 8B, 85, 0B, AE, 03, 20, 2B, 85, 3B, AF, 03, 20, 8B, 00, 89, 85, 78, AF, 03, 20, 8B, 85, 0B, AE, 03, 20, 2B, 85, 3F, AF, 03, 20, 8B, 00, 89, 85, 7C, AF, 03, 20, EB, 61, 83, BD, 43, AF, 03, 20, 00, 74, 58, 8B, 85, 0B, AE, 03, 20, 2B, 85, 43, AF, 03, 20, FF, 30, 8D, 85...
 
[+]

Entropy:
7.7197

Packer / compiler:
ASPack v1.08.04

Code size:
95.5 KB (97,792 bytes)

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

http://drz8jtr1e8te9.cloudfront.net/prepreinstaller_win.exe

Remove prepreinstaller_win.exe - Powered by Reason Core Security
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