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prepreinstaller_win.exe

The executable prepreinstaller_win.exe has been detected as malware by 11 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 d2k54omj9vnmc1.cloudfront.net.
MD5:
1be102e3ff7bedd849cb0a2c6f52fc85

SHA-1:
733bc1865f418491549ccb2f41bcabbc92690f57

SHA-256:
65a1f5cc3d250825e6f8bc37c04264e79c3acb34cd0247a8fe66a891d922f17c

Scanner detections:
11 / 68

Status:
Malware

Explanation:
prepreinstaller_win.exe is infected by a worm that might download, install and run additional malware as well as may spread to other executable files.

Analysis date:
11/24/2024 9:52:17 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:RmnDrp
160310-2

AVG
Win32/Zbot.G
2015.0.4533

Dr.Web
Trojan.DownLoader19.55600
9.0.1.05190

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
Program.Artemis!227FEC104F47
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.215.2503.0

Norman
Win32.Ramnit.N
29.02.2016 05:46:54

VIPRE Antivirus
Threat.4732184
47332

File size:
344.4 KB (352,710 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:
3/15/2016 6:28:44 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:DYQlv5HIYHFi3sFkPiwwSOz0TZUds5EjRpSYXRElm+XbxNJHDbo2klz:s8BFAIq0XSYXRElm+7tDboPlz

Entry address:
0x3E000

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:
6.6453

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://d2k54omj9vnmc1.cloudfront.net/prepreinstaller_win.exe

Remove prepreinstaller_win.exe - Powered by Reason Core Security
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