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{fa53d675-4680-455e-ac21-6ef151942a45}w64.sys

App Bud

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {fa53d675-4680-455e-ac21-6ef151942a45}w64.sys by App Bud has been detected as adware by 5 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{fa53d675-4680-455e-ac21-6ef151942a45}w64”.
Publisher:
StdLib  (signed by App Bud)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
2789f32269689e573cc9974b4060262c

SHA-1:
d73f0c78c86846edb5568a9a72d1726e89a17b8d

SHA-256:
ec0bfd30c2fa957d93cecd6deb9ff2b7ee07afb0313a1a8fd0222a1aeb34fc06

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:
5/21/2024 4:23:00 AM UTC  (today)

Scan engine
Detection
Engine version

herdProtect (fuzzy)
variant of {f551efce-3692-4ed5-8201-c1c7dbef1744}w64.sys (Adware)
2014.9.9.23

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

Reason Heuristics
PUP.AppBud.m
14.7.29.5

Sophos
BrowseSmart
4.98

VIPRE Antivirus
Trojan.Win32.Generic
31584

File size:
59.6 KB (61,008 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\{fa53d675-4680-455e-ac21-6ef151942a45}w64.sys

Digital Signature
Signed by:
App Bud

Authority:
DigiCert Inc

Valid from:
6/9/2014 2:00:00 AM

Valid to:
6/17/2015 2:00:00 PM

Subject:
CN=App Bud, O=App Bud, 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:
07591B091A65F99B8121AB657546815A

File PE Metadata
Compilation timestamp:
1/31/2014 1:45:30 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:Sot2dxF9O8ZF33iqiIy938bWp9XcfBvJkowidI5ZVoMyd:S9JRicy938ip9ea1jHyd

Entry address:
0xF064

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, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 00, 00, C0, 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, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{fa53d675-4680-455e-ac21-6ef151942a45}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.