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updategreygray.exe

GreyGray

Part of the Yontoo web browser plugin (delivers advertisements to the web browser in the form of injected banners, text-links, popups, etc.) the updater mechanism for GreyGray will automatically keep the extension patched by downloaded new functionality which is auto-enabled by default. The application updategreygray.exe by GreyGray has been detected as adware by 7 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “Update GreyGray”. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
GreyGray  (signed and verified)

Version:
1.0.5225.26007

MD5:
d37da16d943190415e04030f178bb8e6

SHA-1:
dea14c058b04dac03be978fa056690a345bcb06e

SHA-256:
0bc04c8e344dc3bb0f9e1137641345f592dbb8d3bea205cf77b6f438591ad2eb

Scanner detections:
7 / 68

Status:
Adware

Explanation:
Part of the Yontoo adware web browser extension update process.

Analysis date:
4/25/2024 1:44:22 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.GreyGray
2015.0.3496

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14423

Boost by Reason
Optional.Service.GreyGray.O
188838

ESET NOD32
Win32/BrowseFox (variant)
8.9709

Malwarebytes
PUP.Optional.GreyGray.A
v2014.04.23.04

Reason Heuristics
Adware.Yontoo.Service.O
14.8.7.20

Sophos
GreyGray
4.98

File size:
342.3 KB (350,488 bytes)

Product version:
1.0.5225.26007

Original file name:
GreyGray.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\greygray\updategreygray.exe

Digital Signature
Signed by:
GreyGray

Authority:
VeriSign, Inc.

Valid from:
9/19/2013 3:00:00 AM

Valid to:
9/20/2015 2:59:59 AM

Subject:
CN=GreyGray, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=GreyGray, 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:
23FF62A16C638B371A4AB98A8F876E8B

File PE Metadata
Compilation timestamp:
4/22/2014 6:27:10 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:B+ym5C4TCj1YOWH41kWv2eVzN+KeOPaVqDKYd5O5+T+SPK1mf+cdb4zpIC:B+D5t8Eip+KYZB

Entry address:
0x55562

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:
6.0780

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

Code size:
333.5 KB (341,504 bytes)

Service
Display name:
Update GreyGray

Type:
Win32OwnProcess


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