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greygraybaapp.dll

GreyGray

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module greygraybaapp.dll by GreyGray has been detected as adware by 8 anti-malware scanners. 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)

MD5:
9490186c0112dfa5f64a2bf8f77b144d

SHA-1:
ade42a62f389c0d3fccffbb5eb5bbb946f6599f4

SHA-256:
c250ff048db41e44ebedc890cb272d51319ca11cf3e463ef60bdd29cbf44dd5d

Scanner detections:
8 / 68

Status:
Adware

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

Analysis date:
4/27/2024 1:47:51 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
Generic_r
2015.0.3496

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14423

Dr.Web
Trojan.BPlug.47
9.0.1.0113

ESET NOD32
Win32/BrowseFox (variant)
8.9709

Reason Heuristics
PUP.GreyGray.N
14.8.7.20

SUPERAntiSpyware
Trojan.Agent/Gen-Dedipros
10649

VIPRE Antivirus
Trojan.Win32.Generic
28526

File size:
175.3 KB (179,480 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\greygray\bin\greygraybaapp.dll

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:
4/4/2014 9:44:13 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:uPIXqws/iH3ZMRct6+N30lMaGtUMz9z35ESDnTKba1nzd7kb:uPQq5RctL8MaGKgzJESSbYnJ7kb

Entry address:
0xF0EB

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, D1, 74, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, A0, 15, 02, 10, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, 18, 10, 02, 10, C9, C2, 08, 00, 8B, FF, 55, 8B, EC, 51, 53, 56, 8B, 35, D8, 10, 02, 10, 57, FF, 35...
 
[+]

Entropy:
6.5593

Code size:
127.5 KB (130,560 bytes)

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