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{ba099a85-e825-4802-83e7-d386a5b4a734}t.sys

BuzzSearch

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {ba099a85-e825-4802-83e7-d386a5b4a734}t.sys by BuzzSearch has been detected as adware by 7 anti-malware scanners. It runs as a Windows kernel mode device driver named “{ba099a85-e825-4802-83e7-d386a5b4a734}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 BuzzSearch)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
4cc944bab2dcd0628c1a2ebe12dc3027

SHA-1:
4b97900195dc9d1576af7f81ad7d7ed977a0ce08

SHA-256:
5b0e240c4cf6e230df95b7a29efad0f07ca110000ec282a8455afb55157b2ee0

Scanner detections:
7 / 68

Status:
Adware

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

Analysis date:
4/24/2024 11:50:05 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Buzzeach
2017.0.2834

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16214

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.6.1.0

McAfee
Artemis!7AE07034A137
5600.6490

Reason Heuristics
PUP.Yontoo.BuzzSearch (M)
16.2.14.11

Trend Micro House Call
Suspicious_GEN.F47V0624
7.2.45

VIPRE Antivirus
Yontoo
31020

File size:
53.4 KB (54,720 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\{ba099a85-e825-4802-83e7-d386a5b4a734}t.sys

Digital Signature
Signed by:
BuzzSearch

Authority:
COMODO CA Limited

Valid from:
5/3/2014 7:00:00 AM

Valid to:
5/4/2015 6:59:59 AM

Subject:
CN=BuzzSearch, OU=BuzzSearch, O=BuzzSearch, STREET=10620 Treena Street Suite 230, L=San Diego, S=Ca, PostalCode=92131, C=US

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00DD9FCB2E901E39FD097F0632D190AF7E

File PE Metadata
Compilation timestamp:
8/7/2014 6:52:31 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:NOnnE+ZwNszUTw/RqzGojR/h3cKG45q30XGBUuJ0xEkMHd8OagKmvz11/6RRRZ+R:OnERxTukHzTrGCuGOVh1/yRyR

Entry address:
0xA6BE

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 4A, E4, FF, FF, CC, CC, 34, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, AB, 00, 00, 94, 90, 00, 00, 20, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3A, AB, 00, 00, 80, 90, 00, 00, 2C, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 56, 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, 26, AB, 00, 00, 12, AB, 00, 00, 00, 00, 00, 00, 42, AB, 00, 00, 00, 00, 00, 00, 2C, A8, 00, 00, 44, A8, 00, 00, 56, A8...
 
[+]

Entropy:
6.3253

Code size:
36.3 KB (37,120 bytes)

Driver
Display name:
{ba099a85-e825-4802-83e7-d386a5b4a734}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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