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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 13 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:
1.0.5278.38804

MD5:
bde24c2a0bf13fef534b4dc00ab9b530

SHA-1:
a3bde01b6882c55e6c30d50f9147eab868e2a95b

Scanner detections:
13 / 68

Status:
Adware

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

Analysis date:
4/26/2024 5:05:19 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
GreyGray
2015.0.3441

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14616

Boost by Reason
Optional.Service.GreyGray.O
188838

ESET NOD32
Win32/BrowseFox (variant)
8.9950

Fortinet FortiGate
Riskware/Agent
9/22/2014

Kaspersky
not-a-virus:RiskTool.Win32.Agent
14.0.0.3212

Malwarebytes
PUP.Optional.GreyGray.A
v2014.06.16.03

McAfee
Artemis!BDE24C2A0BF1
5600.7097

Qihoo 360 Security
Win32/Virus.RiskTool.cac
1.0.0.1015

Reason Heuristics
Adware.Yontoo.Service.O
14.8.7.20

Sophos
GreyGray
4.98

Trend Micro House Call
Suspicious_GEN.F47V0615
7.2.167

VIPRE Antivirus
Yontoo
30338

File size:
310.3 KB (317,720 bytes)

Product version:
1.0.5278.38804

Original file name:
GreyGray.exe

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
GreyGray

Authority:
VeriSign, Inc.

Valid from:
9/18/2013 7:00:00 PM

Valid to:
9/19/2015 6:59:59 PM

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:
6/14/2014 5:33:44 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:fWBn87W1RHA4Wk/YRdz8ZKEJA6R5bGubM1R2H:fWBiWPA4mzEqK5CXU

Entry address:
0x4D5E2

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, 02, 00, 10, 00, 00, 00, 20, 00, 00, 80, 18, 00, 00, 00, D8, 02, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 01, 00, 00, 00, 38, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 00, 00, 00, 00, 50, 00, 00, 00, 5C, E0, 04, 00, 7C, 02, 00, 00, 00, 00, 00, 00, 7C, 02, 34, 00, 00, 00...
 
[+]

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

Code size:
301.5 KB (308,736 bytes)

Service
Display name:
Update GreyGray

Type:
Win32OwnProcess


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