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{a414b9c8-afb5-4899-b1dc-d307d6e50473}gt.sys

EnhanceTronic

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {a414b9c8-afb5-4899-b1dc-d307d6e50473}gt.sys by EnhanceTronic has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a Windows kernel mode device driver named “{a414b9c8-afb5-4899-b1dc-d307d6e50473}Gt”.
Publisher:
StdLib  (signed by EnhanceTronic)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
0663dc83be8952a4619538a686b9f912

SHA-1:
62853fbfadb94b6e680ba062e4e85076e2441b01

SHA-256:
8c1565d875838db45fc95a09fc4157f8f858ab32494958f678b32522d0b4725c

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
12/23/2024 5:28:11 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.7.21

File size:
53.9 KB (55,232 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{a414b9c8-afb5-4899-b1dc-d307d6e50473}gt.sys

Digital Signature
Signed by:
EnhanceTronic

Authority:
VeriSign, Inc.

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

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

Subject:
CN=EnhanceTronic, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=EnhanceTronic, 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:
47011A69DA61BB00374559218BF5D8A3

File PE Metadata
Compilation timestamp:
1/30/2014 7:46:38 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xA73E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, CA, E3, FF, FF, CC, CC, B4, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 84, AB, 00, 00, 94, 90, 00, 00, A0, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BA, AB, 00, 00, 80, 90, 00, 00, AC, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D6, AB, 00, 00, 8C, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, AB, 00, 00, 92, AB, 00, 00, 00, 00, 00, 00, C2, AB, 00, 00, 00, 00, 00, 00, AC, A8, 00, 00, C4, A8, 00, 00, D6, A8...
 
[+]

Entropy:
6.3477

Code size:
36.3 KB (37,120 bytes)

Driver
Display name:
{a414b9c8-afb5-4899-b1dc-d307d6e50473}Gt

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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