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prepreinstaller_win.exe

The executable prepreinstaller_win.exe has been detected as malware by 13 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 d2wg8tiotv43q3.cloudfront.net.
MD5:
926dc3d52f3fc7b930d976ca05f47b94

SHA-1:
540f7a2559c28272cbfb27913d7c738c40e0e14c

SHA-256:
497ad17a19995b46461257cc03c1befe6f77282e6a5885d98e8f5d5190ff2131

Scanner detections:
13 / 68

Status:
File is infected by a Virus

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

Analysis date:
4/26/2024 8:02:32 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Win32.Ramnit.N
5813571

avast!
Win32:RmnDrp
160124-0

AVG
Win32/Zbot.G
2015.0.4489

Clam AntiVirus
W32.Ramnit-1
0.98/21299

Emsisoft Anti-Malware
Win32.Ramnit.N
10.0.0.5366

ESET NOD32
Win32/Ramnit.H virus
7.0.302.0

F-Prot
W32/Ramnit.E
4.6.5.141

Kaspersky
Virus.Win32.Nimnul
15.0.0.562

McAfee
Trojan.RDN/Generic Downloader.x
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.213.4031.0

Norman
Win32.Ramnit.N
11.01.2016 17:30:26

Sophos
Virus 'W32/Ramnit-A'
5.22

VIPRE Antivirus
Threat.4732184
46732

File size:
310.3 KB (317,786 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:
1/20/2016 7:55:59 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:hU+Ei5k6R2gRKt9O7uKNhT3n+DF+2sP/Q4OOFTXdD5sua:afgRKt9YzG+2sP/ZBXddsua

Entry address:
0x3B000

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:
6.7336

Packer / compiler:
ASPack v1.08.04

Code size:
107 KB (109,568 bytes)

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

http://d2wg8tiotv43q3.cloudfront.net/prepreinstaller_win.exe

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