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{a3f28269-ad17-41a8-b032-3e0313ef8979}gt.sys

Greener Web

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {a3f28269-ad17-41a8-b032-3e0313ef8979}gt.sys by Greener Web has been detected as adware by 5 anti-malware scanners. It runs as a Windows kernel mode device driver named “{a3f28269-ad17-41a8-b032-3e0313ef8979}Gt”.
Publisher:
StdLib  (signed by Greener Web)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
f4d7cbc67915a346b124861e0da8d9bc

SHA-1:
dbed935e3978cf63029f31f39f628c2419d4768a

Scanner detections:
5 / 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:
4/25/2024 8:13:22 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Greeneb
2015.0.3425

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.6.1.0

McAfee
Artemis!F4D7CBC67915
5600.7081

Reason Heuristics
PUP.GreenerWeb.l
14.7.2.14

Trend Micro House Call
Suspicious_GEN.F47V0611
7.2.183

File size:
53.8 KB (55,128 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Common path:
C:\Windows\System32\drivers\{a3f28269-ad17-41a8-b032-3e0313ef8979}gt.sys

Digital Signature
Signed by:
Greener Web

Authority:
DigiCert Inc

Valid from:
6/5/2014 4:00:00 AM

Valid to:
6/10/2015 4:00:00 PM

Subject:
CN=Greener Web, O=Greener Web, L=Santa Monica, S=California, C=US

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
07CF8E3C70EA58D06FE678225FF74862

File PE Metadata
Compilation timestamp:
1/31/2014 4:46:38 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:VqbP7EDNtMTw/RWDjR/McKV5qEXGBJgxgZ+4AOmvtnBU6+RRS4w2GMs+:4P7EJSTukuzTrGYs+JNBUtRfwoV

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...
 
[+]

Code size:
36.3 KB (37,120 bytes)

Driver
Display name:
{a3f28269-ad17-41a8-b032-3e0313ef8979}Gt

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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