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{9af01943-a5fc-49e4-b5b9-304e8b296bb1}w64.sys

Scan Tack

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {9af01943-a5fc-49e4-b5b9-304e8b296bb1}w64.sys by Scan Tack has been detected as adware by 19 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{9af01943-a5fc-49e4-b5b9-304e8b296bb1}w64”. 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 Scan Tack)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
c49546cd2f61d167af18f59df68d1adf

SHA-1:
6cdda3e00b6607b5be6f58c58517aa45740fac5c

SHA-256:
a789c1ff9f5904098933ff9965ac318dec78af07e66fc956aa7f47cdeca726d8

Scanner detections:
19 / 68

Status:
Adware

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

Analysis date:
4/18/2024 1:54:40 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
478

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
Adware/BrowseFox.apb
7.11.189.208

avast!
Win32:BrowseFox-J [PUP]
2014.9-151014

AVG
Generic
2016.0.2956

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.1435

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21511

Dr.Web
Tool.NetFilter.313
9.0.1.0287

ESET NOD32
Win64/BrowseFox.CG (variant)
9.10813

F-Prot
W64/A-59c9c70a
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
11.2015-14-10_4

G Data
Adware.SwiftBrowse.CH
15.10.24

McAfee
Artemis!C49546CD2F61
5600.6612

MicroWorld eScan
Adware.SwiftBrowse.CH
16.0.0.861

nProtect
Adware.SwiftBrowse.CH
14.12.02.01

Qihoo 360 Security
Win32/Virus.Adware.06a
1.0.0.1015

Reason Heuristics
PUP.Yontoo.ScanTack (M)
15.10.14.21

VIPRE Antivirus
Trojan.Win32.Generic
35350

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.1997

File size:
47.7 KB (48,824 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{9af01943-a5fc-49e4-b5b9-304e8b296bb1}w64.sys

Digital Signature
Signed by:
Scan Tack

Authority:
VeriSign, Inc.

Valid from:
1/21/2014 7:00:00 PM

Valid to:
1/22/2015 6:59:59 PM

Subject:
CN=Scan Tack, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Scan Tack, 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:
44D91A3142283CE62B23F23C84838B0D

File PE Metadata
Compilation timestamp:
11/29/2014 5:22:36 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lU7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3OMe:yFID6EGnLA8AFJTNEVmDE

Entry address:
0xC064

Entry point:
48, 83, EC, 28, 4C, 8B, C2, 4C, 8B, C9, E8, 95, FF, FF, FF, 49, 8B, D0, 49, 8B, C9, 48, 83, C4, 28, E9, E2, 50, FF, FF, CC, CC, 78, C2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 54, C6, 00, 00, A0, 91, 00, 00, 28, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DA, CA, 00, 00, 50, 90, 00, 00, D8, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D2, CB, 00, 00, 00, 90, 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, B6, CB, 00, 00, 00, 00, 00, 00, A2, CB, 00, 00...
 
[+]

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{9af01943-a5fc-49e4-b5b9-304e8b296bb1}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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