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greenerweb.gcupdate.dll

Perfect Bid

This is the Google Chrome extension manager/updater for the Yontoo Perfect Bid branded web browser plugin which injects banners, text-link and popup ads in the Chorme browser. The module greenerweb.gcupdate.dll by Perfect Bid has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Perfect Bid  (signed and verified)

Version:
1.0.5961.37673

MD5:
fbc506799301208c46c3780d9bbaca1c

SHA-1:
697a4fa1acaf5c89e3ea059ade17f72b6644affd

SHA-256:
1fd8fecdaf0ec770ee5264c087659b51fced8903ccbaf6af50d3178e9a76a22b

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Part of the Yontoo distributed ad-supported web browser extension for Chrome.

Analysis date:
8/5/2025 8:23:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.4.23

File size:
1.5 MB (1,590,472 bytes)

Product version:
1.0.5961.37673

Original file name:
2016042804.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\greener web\bin\plugins\greenerweb.gcupdate.dll

Digital Signature
Signed by:
Perfect Bid

Authority:
VeriSign, Inc.

Valid from:
9/2/2015 8:00:00 AM

Valid to:
9/2/2016 7:59:59 AM

Subject:
CN=Perfect Bid, O=Perfect Bid, L=San Diego, S=California, 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:
6574F6AF9AE6897999AD4F208455C6BB

File PE Metadata
Compilation timestamp:
4/28/2016 12:55:53 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
11.0

.NET CLR dependent:
Yes

Entry address:
0x184326

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
7.2972

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
1.5 MB (1,582,080 bytes)

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