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utilgreygray.exe

GreyGray

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utilgreygray.exe by GreyGray has been detected as adware by 11 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:
1.0.5444.33058

MD5:
48364cb05bfa7cb1a70b7d904f60dbd1

SHA-1:
74c5777ed828d09d941cc9169449eea482b47a92

SHA-256:
9aaa3ef17c0f93815b93a8d494ff9939e8b0f188c8373f0024cd6694e73bcb6f

Scanner detections:
11 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/23/2024 11:33:49 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.11.28

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.189.64

avast!
Win32:BrowseFox-DQ [PUP]
141119-1

AVG
GreyGray
2015.0.3277

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141128

ESET NOD32
MSIL/BrowseFox.H potentially unwanted application
7.0.302.0

K7 AntiVirus
Unwanted-Program
13.186.14161

Qihoo 360 Security
Win32/Virus.Adware.708
1.0.0.1015

Reason Heuristics
Adware.Yontoo.Service.M
14.11.28.0

Sophos
GreyGray
4.98

VIPRE Antivirus
Threat.4741131
35088

File size:
513.3 KB (525,592 bytes)

Product version:
1.0.5444.33058

Original file name:
GreyGray2014112802.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\greygray\bin\utilgreygray.exe

Digital Signature
Signed by:
GreyGray

Authority:
VeriSign, Inc.

Valid from:
9/19/2013 5:00:00 AM

Valid to:
9/20/2015 4:59:59 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:
11/28/2014 7:22:04 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:T/AN/Ty+TXhTnMniMErrA0fR5RU6gQ77UyQGi7xGISQhSrGRL1x8H+S+1gEQthdy:To5/TXhIErA1dOXIStrUQthdmj

Entry address:
0x801C2

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, 02, 00, 10, 00, 00, 00, 20, 00, 00, 80, 18, 00, 00, 00, 38, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 01, 00, 00, 00, 50, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

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

Code size:
504.5 KB (516,608 bytes)

Service
Display name:
Update GreyGray

Type:
Win32OwnProcess


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