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perfectoptimizer.exe

PerfectOptimizer 5.2

Beijing WeiSiTianYu software development services center

The application perfectoptimizer.exe, “PCOPT ” by Beijing WeiSiTianYu software development services center has been detected as a potentially unwanted program by 15 anti-malware scanners. The program is a setup application that uses the Inno Setup installer. The file has been seen being downloaded from software-files-a.cnet.com and multiple other hosts.
Publisher:
Weskysoft Inc.   (signed by Beijing WeiSiTianYu software development services center)

Product:
PerfectOptimizer 5.2

Description:
PCOPT

Version:
5.2

MD5:
095df9a50787a87643c12f839e4e94ed

SHA-1:
fe4d9cccf5f4d696f46ac55afae29bc62128bd74

SHA-256:
db1aa7fb90f1f6f9d591e648647b3ff4df1dadb3cb41ae5de4cc01f40a82727f

Scanner detections:
15 / 68

Status:
Potentially unwanted

Analysis date:
4/24/2024 1:15:54 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
TR/FraudPack.5332464
7.11.124.238

AVG
MalSign.Skodna.SecurityTool.7eb
2015.0.3383

ESET NOD32
Win32/Adware.PerfectOptimizer (variant)
8.9282

IKARUS anti.virus
Win32.SuspectCrc
t3scan.2.2.29

K7 AntiVirus
Unwanted-Program
13.175.10814

McAfee
Artemis!095DF9A50787
5600.7039

Microsoft Security Essentials
Misleading:Win32/PerfectOptimizer
1.165.247.01

NANO AntiVirus
Trojan.Win32.PerfectOptimizer.bejttn
0.28.0.57029

Norman
Suspicious_Gen5.ADKQ
11.20140814

Quick Heal
Program.PerfectOptimizer (Not a Virus)
8.14.12.00

Rising Antivirus
PE:Trojan.Win32.Generic.129B6F25!312176421
23.00.65.14812

Sophos
Generic PUA PO
4.96

Trend Micro House Call
TROJ_GEN.R047C0DA514
7.2.226

Trend Micro
TROJ_GEN.R047C0DA514
10.465.14

VIPRE Antivirus
Trojan.Win32.Generic
25382

File size:
5.1 MB (5,332,464 bytes)

Product version:
5.2

Copyright:
2009

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\perfectoptimizer.exe

Digital Signature
Signed by:
Beijing WeiSiTianYu software development services center

Authority:
VeriSign, Inc.

Valid from:
3/7/2011 6:00:00 PM

Valid to:
3/7/2012 5:59:59 PM

Subject:
CN=Beijing WeiSiTianYu software development services center, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Beijing WeiSiTianYu software development services center, L=Beijing, S=Beijing, C=CN

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
6DED01C5B93F0A71E9715C373D1EF44F

File PE Metadata
Compilation timestamp:
3/17/2011 5:22:54 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
98304:4Pcsq/iHSvCLGZydCleVgGYqcz29nl5S/ZdEWGzF1RloSNOMJ1+Vi:Z3/iyvCLGZyM4Yqcz29SZdAOSOMJp

Entry address:
0x16478

Entry point:
55, 8B, EC, 83, C4, A4, 53, 56, 57, 33, C0, 89, 45, C4, 89, 45, C0, 89, 45, A4, 89, 45, D0, 89, 45, C8, 89, 45, CC, 89, 45, D4, 89, 45, D8, 89, 45, EC, B8, B0, 52, 41, 00, E8, AC, 03, FF, FF, 33, C0, 55, 68, 45, 6B, 41, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 01, 6B, 41, 00, 64, FF, 32, 64, 89, 22, A1, 48, AB, 41, 00, E8, 4E, EC, FF, FF, E8, F5, E7, FF, FF, 8D, 55, EC, 33, C0, E8, 7F, 84, FF, FF, 8B, 55, EC, B8, AC, D6, 41, 00, E8, E2, E9, FE, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, AC, D6, 41, 00, B2, 01...
 
[+]

Entropy:
7.9906

Developed / compiled with:
Microsoft Visual C++

Code size:
84 KB (86,016 bytes)

The file perfectoptimizer.exe has been seen being distributed by the following 2 URLs.

http://software-files-a.cnet.com/s/software/12/05/13/.../PerfectOptimizer.exe

http://files.downloadnow.com/s/software/12/05/13/.../PerfectOptimizer.exe

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