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prepreinstaller_win.exe

The executable prepreinstaller_win.exe has been detected as malware by 9 anti-virus scanners. 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 d1xfekgb0nh8lj.cloudfront.net.
MD5:
8748cecab8b4d704fb546ca144e63e0a

SHA-1:
dea9d1e2f681ae167f5615afa9bfee0681d1e82a

SHA-256:
25da548089dbd730009c1a10b52a618f9afada21dc768ad464b3634812ae6f68

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 1:23:37 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:RmnDrp
160209-2

AVG
Win32/Zbot.G
2015.0.4530

Dr.Web
Win32.Rmnet.8
9.0.1.05190

Emsisoft Anti-Malware
Win32.Ramnit.N
10.0.0.5366

ESET NOD32
Win32/Ramnit.H virus
8.0.319.0

F-Prot
W32/Ramnit.E
4.6.5.141

Kaspersky
Virus.Win32.Nimnul
15.0.0.562

McAfee
Trojan.RDN/Generic PUP.x
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.213.6285.0

File size:
527 KB (539,642 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:
2/10/2016 12:54:48 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:P2GWvhHUw+SXfLchno3V/6LZQRL/9hX5d:OGWvtkwLchno3VceF/9hX5d

Entry address:
0x51000

Entry point:
60, E8, 00, 00, 00, 00, 5D, 8B, C5, 81, ED, CE, B2, 01, 20, 2B, 85, 35, BA, 01, 20, 89, 85, 31, BA, 01, 20, B0, 00, 86, 85, 66, BC, 01, 20, 3C, 01, 0F, 85, BC, 01, 00, 00, 83, BD, 61, BB, 01, 20, 00, 74, 33, 83, BD, 65, BB, 01, 20, 00, 74, 2A, 8B, 85, 31, BA, 01, 20, 2B, 85, 61, BB, 01, 20, 8B, 00, 89, 85, 9E, BB, 01, 20, 8B, 85, 31, BA, 01, 20, 2B, 85, 65, BB, 01, 20, 8B, 00, 89, 85, A2, BB, 01, 20, EB, 61, 83, BD, 69, BB, 01, 20, 00, 74, 58, 8B, 85, 31, BA, 01, 20, 2B, 85, 69, BB, 01, 20, FF, 30, 8D, 85...
 
[+]

Entropy:
7.0179

Packer / compiler:
ASPack v1.08.04

Code size:
97 KB (99,328 bytes)

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

http://d1xfekgb0nh8lj.cloudfront.net/prepreinstaller_win.exe

Remove prepreinstaller_win.exe - Powered by Reason Core Security
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