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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 12 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:
1.0.5268.25492

MD5:
4f9e3cadebd32a0839c16ce3694a7fc0

SHA-1:
02693091b17d00bf1747dca2f54db9d7817a0fa9

SHA-256:
cdb337d167234619909f41da07737ce7766b474a3061388a1531e59a88fbbbd3

Scanner detections:
12 / 68

Status:
Adware

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

Analysis date:
4/25/2024 1:09:06 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
GreyGray
2015.0.3452

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1465

ESET NOD32
Win32/BrowseFox.H potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/Agent
6/5/2014

Kaspersky
not-a-virus:RiskTool.Win32.Agent
15.0.0.463

Malwarebytes
PUP.Optional.GreyGray.A
v2014.06.05.02

McAfee
Artemis!4F9E3CADEBD3
5600.7108

Qihoo 360 Security
Win32/Virus.RiskTool.cac
1.0.0.1015

Reason Heuristics
PUP.Service.GreyGray.M
14.8.7.20

Sophos
GreyGray
4.98

Trend Micro House Call
TROJ_GEN.F47V0510
7.2.265

VIPRE Antivirus
Threat.4741131
29800

File size:
310.3 KB (317,720 bytes)

Product version:
1.0.5268.25492

Original file name:
GreyGray.exe

File type:
Executable application (Win32 EXE)

Language:
Swedish (Sweden)

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

Digital Signature
Signed by:
GreyGray

Authority:
VeriSign, Inc.

Valid from:
9/19/2013 2:00:00 AM

Valid to:
9/20/2015 1:59:59 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:
6/4/2014 5:09:59 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:XN+Bn8rXntZ59HnrkdjYB7AoSZukGQr5CDub6LaHJ:XN+BuXR9HnGxU9W5IDap

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...
 
[+]

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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