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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:
1.0.5270.27864

MD5:
6c2a7b17d0ceb24b7fe86b7a3070d7f8

SHA-1:
c8eff57565f622791f81747cc8027b09cbd0cdab

SHA-256:
e6d8e0907c20bdddf72caeeeb445edc1cd53a55e769dbd1acdb7de118f4fe2af

Scanner detections:
13 / 68

Status:
Adware

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

Analysis date:
4/16/2024 11:54:39 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
GreyGray
2015.0.3449

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1468

Boost by Reason
Optional.Service.GreyGray.O
188838

ESET NOD32
Win32/BrowseFox (variant)
8.9910

Fortinet FortiGate
Riskware/Agent
9/22/2014

Kaspersky
not-a-virus:RiskTool.Win32.Agent
14.0.0.3740

Malwarebytes
PUP.Optional.GreyGray.A
v2014.06.08.11

McAfee
Artemis!6C2A7B17D0CE
5600.7105

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
TROJ_GEN.F47V0510
7.2.265

VIPRE Antivirus
Yontoo
30074

File size:
310.3 KB (317,720 bytes)

Product version:
1.0.5270.27864

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 8:00:00 AM

Valid to:
9/20/2015 7:59:59 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:
6/7/2014 12:29:03 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:/ioBn8b3W8VXCQikXZEXslDc7IBZuZTqr5X8ubnMx:/ioBq3WkCQ4BqUZs5sR

Entry address:
0x4D5AA

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, 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...
 
[+]

Entropy:
6.0844

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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