{47a3b56f-80e6-4ea5-8093-7656ffd5c11a}t.sys

DigiHelp

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {47a3b56f-80e6-4ea5-8093-7656ffd5c11a}t.sys by DigiHelp has been detected as adware by 20 anti-malware scanners. It runs as a Windows kernel mode device driver named “{47a3b56f-80e6-4ea5-8093-7656ffd5c11a}t”. 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:
StdLib  (signed by DigiHelp)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
4193d03d48bc396004b0787151417bee

SHA-1:
2fee75a802cf6da9ceb83a7d338bf72982ed1013

Scanner detections:
20 / 68

Status:
Adware

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

Analysis date:
4/23/2024 8:26:20 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.NetFilter.J
775

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.15
7.11.196.160

AVG
Generic
2015.0.3253

Bitdefender
Adware.NetFilter.J
1.0.20.1780

Clam AntiVirus
Win.Adware.Netfilter-130
0.98/21511

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20410

Dr.Web
Trojan.BPlug.123
9.0.1.0356

Emsisoft Anti-Malware
Adware.NetFilter
8.14.12.22.06

F-Prot
W32/A-b3b70cb0
v6.4.7.1.166

F-Secure
Adware.NetFilter.J
11.2014-22-12_2

G Data
Adware.NetFilter
14.12.24

McAfee
Artemis!4193D03D48BC
5600.6909

MicroWorld eScan
Adware.NetFilter.J
15.0.0.1068

NANO AntiVirus
Riskware.Win32.NetFilter.dgqvkd
0.28.6.64267

nProtect
Adware.NetFilter.J
14.12.18.01

Qihoo 360 Security
HEUR/QVM00.1.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.DigiHelp.k
14.12.22.6

VIPRE Antivirus
Trojan.Win32.Generic
35850

Zillya! Antivirus
Adware.Yotoon.Win64.10
2.0.0.2008

File size:
54.5 KB (55,816 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\{47a3b56f-80e6-4ea5-8093-7656ffd5c11a}t.sys

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
9/2/2014 2:00:00 AM

Valid to:
9/3/2015 1:59:59 AM

Subject:
CN=DigiHelp, O=DigiHelp, 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:
1A7686F9F81F8C322CBB5D0915469B2B

File PE Metadata
Compilation timestamp:
12/17/2014 2:24:16 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:9o6LohZZMITF7zKLV3fXoKKxaFtFkW4VIWPLqvH9EQZLN+p60CeyyEU:9o6+pT1UvYDEHFV4nPe/kpvCev

Entry address:
0xA9BE

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 2A, E4, FF, FF, CC, CC, 34, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, AE, 00, 00, 94, 93, 00, 00, 20, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3A, AE, 00, 00, 80, 93, 00, 00, 2C, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 56, AE, 00, 00, 8C, 93, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 26, AE, 00, 00, 12, AE, 00, 00, 00, 00, 00, 00, 42, AE, 00, 00, 00, 00, 00, 00, 2C, AB, 00, 00, 44, AB, 00, 00, 56, AB...
 
[+]

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{47a3b56f-80e6-4ea5-8093-7656ffd5c11a}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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