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{a3f28269-ad17-41a8-b032-3e0313ef8979}t.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}t.sys by Greener Web has been detected as adware by 11 anti-malware scanners. It runs as a Windows kernel mode device driver named “{a3f28269-ad17-41a8-b032-3e0313ef8979}t”.
Publisher:
StdLib  (signed by Greener Web)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
c482bdf3957b8a6da1f2247a1d56a0ee

SHA-1:
0fc0eff91851bda88fba4e75178ceadb5fca1682

SHA-256:
7bd038ed027194da1aaab6739530857836ab279d45e5ed2c99915d130386edec

Scanner detections:
11 / 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 4:48:17 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Greenerweb
2015.0.3400

Baidu Antivirus
Adware.Win64.Yotoon
4.0.3.14728

Dr.Web
Trojan.BPlug.117
9.0.1.05190

G Data
Win32.Application.Browsefox
14.7.24

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.6.1.0

Kaspersky
not-a-virus:AdWare.Win64.Yotoon
15.0.0.494

McAfee
Artemis!C3CC75C05C3E
5600.7056

Reason Heuristics
PUP.GreenerWeb.k
14.7.28.8

Trend Micro House Call
Suspicious_GEN.F47V0621
7.2.209

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
31386

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

Digital Signature
Signed by:
Greener Web

Authority:
VeriSign, Inc.

Valid from:
4/22/2014 5:30:00 AM

Valid to:
4/23/2015 5:29:59 AM

Subject:
CN=Greener Web, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Greener Web, L=Santa Monica, 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:
5AE1591EB6D76718ADCE211DFB4D195B

File PE Metadata
Compilation timestamp:
1/31/2014 6:16:38 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:VubP7EDNtMTw/RWDjR/McKV5qEXGBJgxgZ+4AOmvtnBU6+RRcaEA:cP7EJSTukuzTrGYs+JNBUtRL

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:
6.3487

Code size:
36.3 KB (37,120 bytes)

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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