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weboptimumsetup.exe

The application weboptimumsetup.exe has been detected as a potentially unwanted program by 5 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.bscood.com.
MD5:
71d5e880cb14abd33cf3fb9a149d23a7

SHA-1:
e557bcc5daf27067e3629d6e9ac2fecdc361d3cf

SHA-256:
f388f7386848830fed3297338119899c8b26d597d92ea612939440bb4926c740

Scanner detections:
5 / 68

Status:
Potentially unwanted

Analysis date:
4/23/2025 1:44:00 AM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Adware.Win32.Agent
4.0.3.151223

K7 AntiVirus
Riskware
13.212.18079

Kaspersky
not-a-virus:AdWare.Win32.Agent
15.0.0.562

Panda Antivirus
Generic Suspicious
15.12.23.09

Qihoo 360 Security
HEUR/QVM42.0.Malware.Gen
1.0.0.1077

File size:
2.7 MB (2,783,718 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\content.ie5\72qcmuhn\weboptimumsetup.exe

File PE Metadata
Compilation timestamp:
11/21/2007 4:25:14 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
49152:A4ACCHfL++FcsOx3qlrz4/owyXHzufJUYzObeWbvcHL39ZHOpfFRfkhnlPK9U:A4tCHDXSwH4/oDqeYzUyTSFdqlPmU

Entry address:
0x33B6

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, DB, 5E, 89, 5C, 24, 18, C7, 44, 24, 10, 40, 86, 40, 00, 89, 5C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 80, 40, 00, 53, FF, 15, B0, 82, 40, 00, 6A, 08, A3, D8, A5, 42, 00, E8, 0D, 26, 00, 00, 53, 68, B4, 02, 00, 00, A3, E0, A4, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 3C, 86, 40, 00, FF, 15, 80, 81, 40, 00, 68, 24, 86, 40, 00, 68, E0, 94, 42, 00, E8, DD, 24, 00, 00, FF, 15, B0, 80, 40, 00, 50, BF, 00, 50, 43, 00, 57, E8, CB, 24, 00, 00...
 
[+]

Entropy:
7.9986

Packer / compiler:
Nullsoft install system v2.x

Code size:
24.5 KB (25,088 bytes)

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

http://www.bscood.com/down/.../WebOptimumSetup.exe

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