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{fa53d675-4680-455e-ac21-6ef151942a45}t.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}t.sys by App Bud has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a Windows kernel mode device driver named “{fa53d675-4680-455e-ac21-6ef151942a45}t”.
Publisher:
StdLib  (signed by App Bud)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
f1479978d056ad2e31c1cc2a0a5ef9d6

SHA-1:
2fe9b5741403f40c9e6459607791a9a4b734245f

Scanner detections:
1 / 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:
12/25/2024 1:45:50 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.AppBud (M)
15.12.19.5

File size:
53.8 KB (55,120 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\{fa53d675-4680-455e-ac21-6ef151942a45}t.sys

Digital Signature
Signed by:
App Bud

Authority:
DigiCert Inc

Valid from:
6/8/2014 8:00:00 PM

Valid to:
6/17/2015 8:00:00 AM

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:
1/30/2014 7:46:38 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:VRbP7EDNtMTw/RWDjR/McKV5qEXGBJgxgZ+4AOmvtnBU6+RRqZVoMvK:nP7EJSTukuzTrGYs+JNBUtRevK

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:
6.3276

Code size:
36.3 KB (37,120 bytes)

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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