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winzipregistryoptimizer.exe

WinZip Registry Optimizer

WinZip Computing

The application winzipregistryoptimizer.exe, “WinZip Registry Optimizer Setup” by WinZip Computing has been detected as a potentially unwanted program by 8 anti-malware scanners. This is a setup and installation application and has been known to bundle potentially unwanted software. The file has been seen being downloaded from install.winzip.com. While running, it connects to the Internet address inst.avg.com on port 80 using the HTTP protocol.
Publisher:
WinZip Computing  (signed and verified)

Product:
WinZip Registry Optimizer

Description:
WinZip Registry Optimizer Setup

Version:
1,18,0,2719

MD5:
1dee37023a4ba304b945af5924704604

SHA-1:
81d60524811c0532048517f9d11d17a9a8080260

SHA-256:
15a4612971b87bcbd101a5555f91f57789abce3dd613e322f965f1b0c4827e6e

Scanner detections:
8 / 68

Status:
Potentially unwanted

Explanation:
Includes Open Install, an installer which bundles legitimate programs with offers for additional 3rd-party applications that may be unwanted by the user.

Analysis date:
4/26/2024 10:05:08 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
Win-Trojan/Malpacked7.Gen
2012.10.06

Bkav FE
W32.Clodbe5.Trojan
1.3.0.4923

Dr.Web
Adware.Downware.9329
9.0.1.0203

Emsisoft Anti-Malware
Trojan.Win32.OpenInstall.AMN
8.15.07.22.07

ESET NOD32
Win32/OpenInstall potentially unwanted application
9.7.0.302.0

herdProtect (fuzzy)
variant of winzipregistryoptimizer.exe
2015.8.22.13

K7 AntiVirus
Unwanted-Program
13.185.14021

Trend Micro House Call
Suspicious_GEN.F47V1105
7.2.203

File size:
456.5 KB (467,464 bytes)

Product version:
1,18,0,2719

Copyright:
Copyright © 2012

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\winzipregistryoptimizer.exe

Digital Signature
Signed by:
WinZip Computing

Authority:
VeriSign, Inc.

Valid from:
3/15/2012 8:00:00 PM

Valid to:
4/13/2014 7:59:59 PM

Subject:
CN=WinZip Computing, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=WinZip Computing, L=Mansfield, S=Connecticut, C=US

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:
5E4842AC9691630B45F8266C0ADB1206

File PE Metadata
Compilation timestamp:
7/12/2012 6:14:25 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
7.10

CTPH (ssdeep):
12288:5GqVFzTaaXM162iOPpu+pjL/VnVqqpyuSDSlmhBZhkwQTTH2:5xBRXQxjBbppD0Sl6Zhkw4H2

Entry address:
0x1000

Entry point:
55, 8B, EC, 81, EC, 1C, 04, 00, 00, 53, 56, 57, BE, 88, 30, 40, 00, 8D, BD, E4, FB, FF, FF, A5, A5, A5, 66, A5, 6A, 7E, 59, 33, C0, 8D, BD, F2, FB, FF, FF, F3, AB, 66, AB, BE, 04, 01, 00, 00, 56, 8D, 85, E4, FB, FF, FF, 50, FF, 15, 50, 30, 40, 00, 33, C0, 33, DB, 66, 89, 9D, EC, FD, FF, FF, B9, 81, 00, 00, 00, 8D, BD, EE, FD, FF, FF, F3, AB, 66, AB, 8D, 85, EC, FD, FF, FF, 50, 53, 68, 80, 30, 40, 00, 8D, 85, E4, FB, FF, FF, 50, FF, 15, 04, 30, 40, 00, 8D, 85, EC, FD, FF, FF, 50, C7, 45, F8, FD, FF, FF, FF...
 
[+]

Entropy:
7.6217

Developed / compiled with:
Microsoft Visual C++

Code size:
7 KB (7,168 bytes)

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

http://install.winzip.com/.../WinZipRegistryOptimizer.exe

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to st.openinstall.com  (184.168.221.46:80)

TCP (HTTP):
Connects to oi.cloud.avg.com  (204.193.144.33:80)

TCP (HTTP):
Connects to inst.avg.com  (204.193.144.89:80)

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