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bisetup.exe

The application bisetup.exe has been detected as a potentially unwanted program by 8 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from www.4sinstalls.info.
MD5:
99513848a981463c0212b3021155c457

SHA-1:
394c3121bb5f0922a347fdb193f463586a4783fa

SHA-256:
a406d96710752b0dea6aedcca3bef8e57bb2c6e086adf603037924ad4c6c918b

Scanner detections:
8 / 68

Status:
Potentially unwanted

Analysis date:
2/25/2025 6:27:14 AM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Trojan.Win32.DownWare
4.0.3.14414

ESET NOD32
Win32/DownWare
8.9676

Malwarebytes
Trojan.Agent.NS
v2014.04.14.07

Norman
Suspicious_Gen4.FXBHQ
11.20140414

Panda Antivirus
Trj/Agent.OKR
14.04.14.07

Trend Micro House Call
TROJ_GEN.R0CBH05DE14
7.2.104

VIPRE Antivirus
Trojan.Win32.Generic
28234

XVirus List
Win32.Detected
2.4.14

File size:
201.1 KB (205,955 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\bisetup.exe

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:GgXdZt9P6D3XJ1iY1vRpyOn1FH0215vVxBBD69g+qCitksr+BHMgtzXHoL5MIW6+:Ge34W4vRcqjHPTDX+kot5q2pd5A8Whnk

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.7481

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://www.4sinstalls.info/.../BISetup.exe

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