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{f727685b-ed90-4adc-8eec-8234574a91e6}w64.sys

ResultsAlpha

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {f727685b-ed90-4adc-8eec-8234574a91e6}w64.sys by ResultsAlpha has been detected as adware by 17 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{f727685b-ed90-4adc-8eec-8234574a91e6}w64”.
Publisher:
StdLib  (signed by ResultsAlpha)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
7f9d30f823d5090b92ac73bca392afc5

SHA-1:
8eef1fec1d90a47c44992b138fdd8eb59b72c1a1

SHA-256:
181179d2f905c2b70eb30065304f0fa72a8e21e3fc86488e07fd45c27b737f8f

Scanner detections:
17 / 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:
4/24/2024 5:05:38 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.J
564

Agnitum Outpost
Riskware.NetFilter
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2015.03.02

AVG
Generic
2016.0.3042

Bitdefender
Adware.SwiftBrowse.J
1.0.20.1010

Clam AntiVirus
Win.Adware.Swiftbrowse-284
0.98/21511

Dr.Web
Tool.NetFilter.1
9.0.1.0202

Emsisoft Anti-Malware
Adware.SwiftBrowse
8.15.07.21.11

ESET NOD32
Win64/Komodia.A potentially unsafe (variant)
9.11251

F-Prot
W64/A-abca7297
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.J
11.2015-21-07_3

G Data
Adware.SwiftBrowse
15.7.25

MicroWorld eScan
Adware.SwiftBrowse.J
16.0.0.606

nProtect
Adware.SwiftBrowse.J
15.02.27.01

Reason Heuristics
PUP.Yontoo.ResultsAlpha (M)
15.7.21.11

VIPRE Antivirus
Trojan.Win32.Generic
38014

Zillya! Antivirus
Adware.Yotoon.Win64.13
2.0.0.2085

File size:
43.7 KB (44,736 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{f727685b-ed90-4adc-8eec-8234574a91e6}w64.sys

Digital Signature
Signed by:
ResultsAlpha

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 2:00:00 AM

Valid to:
10/8/2014 1:59:59 AM

Subject:
CN=ResultsAlpha, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=ResultsAlpha, 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:
469743F6036CB7B569DBDE100D5C126B

File PE Metadata
Compilation timestamp:
9/13/2014 1:33:02 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:rgLmaZF8aSQ7DwZmEhzg8ClFHeDrTdRfsQCa5075YLwidH4y1M:s5ZEQI8E7ClquaC759EG

Entry address:
0xB064

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, C6, 60, FF, FF, CC, CC, 38, B2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, B6, 00, 00, 60, 81, 00, 00, 28, B1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, B9, 00, 00, 50, 80, 00, 00, D8, B0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, BA, 00, 00, 00, 80, 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, 9A, BA, 00, 00, 00, 00, 00, 00, 86, BA, 00, 00...
 
[+]

Code size:
30.5 KB (31,232 bytes)

Driver
Display name:
{f727685b-ed90-4adc-8eec-8234574a91e6}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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