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GrabRez.GCUpdate.dll

GrabRez

This is the Google Chrome extension manager/updater for the Yontoo GrabRez branded web browser plugin which injects banners, text-link and popup ads in the Chorme browser. The module GrabRez.GCUpdate.dll by GrabRez has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
GrabRez  (signed and verified)

Version:
1.0.5415.20903

MD5:
5fa64b5d3854dbad2e9b9eef6fd1cd03

SHA-1:
2353aeb4426dde2c6de64bb98d019b8b4fa45dc6

SHA-256:
51be01a2eb935f68ba6a207f4dbe7172c03c4872f7448eda132ea77f459d592b

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Part of the Yontoo distributed ad-supported web browser extension for Chrome.

Analysis date:
4/27/2024 1:37:03 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo.GrabRez (M)
16.2.14.10

File size:
1.6 MB (1,648,920 bytes)

Product version:
1.0.5415.20903

Original file name:
GrabRez.GCUpdate.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\grabrez\bin\plugins\grabrez.gcupdate.dll

Digital Signature
Signed by:
GrabRez

Authority:
VeriSign, Inc.

Valid from:
11/26/2013 7:00:00 PM

Valid to:
11/27/2014 6:59:59 PM

Subject:
CN=GrabRez, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=GrabRez, 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:
63321F6F4FC45CBD2C4E1616655D18DB

File PE Metadata
Compilation timestamp:
10/29/2014 3:36:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
24576:0C3T2wNNcMAAoXA5/6BU/UJi7ks4WaWaZg6r5qdkONYXA85lUxK/hnFwuL/a8gLi:0WBaZgMqdk5tlFFwAqLl9+i2hz

Entry address:
0x1925B2

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, 02, 00, 00, 00, 6C, 00, 00, 00, F4, 25, 19, 00, F4, 07, 19, 00, 52, 53, 44, 53, D3, AC, 47, 0A, 59, F7, 39, 45, 97, E8, 08, 54, F4, B4, 5E, 8E, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 61, 76, 30, 69, 61, 6C, 65, 30, 2E, 35, 6C, 77, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

Entropy:
7.3233

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

Code size:
1.6 MB (1,640,448 bytes)

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