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{058899d6-9704-4de3-aae7-17e9fc44c761}t.sys

WebSparkle

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {058899d6-9704-4de3-aae7-17e9fc44c761}t.sys by WebSparkle has been detected as adware by 14 anti-malware scanners. It runs as a Windows kernel mode device driver named “{058899d6-9704-4de3-aae7-17e9fc44c761}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 WebSparkle)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
9c7ab153baf2821b9a1f97bc4d8b1cfb

SHA-1:
9961dc9b8003a7833dc8036457fa308ee26bc736

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/19/2024 8:11:53 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
MSIL:BrowseFox-Q [PUP]
2014.9-160215

AVG
Maucampo
2017.0.2832

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16215

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Agent-42736
0.98/21511

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
22090

Dr.Web
Trojan.BPlug.117
9.0.1.046

F-Prot
W32/A-dd00b781
v6.4.7.1.166

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.6.1.0

NANO AntiVirus
Trojan.Win32.BPlug.dcxxfx
0.28.2.61721

Reason Heuristics
PUP.Yontoo.WebSparkle (M)
16.2.15.19

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
29236

Zillya! Antivirus
Adware.Yotoon.Win64.2
2.0.0.2174

File size:
54.6 KB (55,872 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\{058899d6-9704-4de3-aae7-17e9fc44c761}t.sys

Digital Signature
Signed by:
WebSparkle

Authority:
VeriSign, Inc.

Valid from:
8/13/2013 7:00:00 AM

Valid to:
8/14/2015 6:59:59 AM

Subject:
CN=WebSparkle, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=WebSparkle, 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:
36202DE0CBDFE10F57978E3766DB2ED4

File PE Metadata
Compilation timestamp:
9/23/2014 2:01:43 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:Jo6LohZZMITF7zKLV3fXoKKxaFtFkW4VIWPLqvH9EQZLN+p60CeE5p:Jo6+pT1UvYDEHFV4nPe/kpvCe4

Entry address:
0xA9BE

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 2A, E4, FF, FF, CC, CC, 34, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, AE, 00, 00, 94, 93, 00, 00, 20, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3A, AE, 00, 00, 80, 93, 00, 00, 2C, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 56, AE, 00, 00, 8C, 93, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 26, AE, 00, 00, 12, AE, 00, 00, 00, 00, 00, 00, 42, AE, 00, 00, 00, 00, 00, 00, 2C, AB, 00, 00, 44, AB, 00, 00, 56, AB...
 
[+]

Entropy:
6.3455

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{058899d6-9704-4de3-aae7-17e9fc44c761}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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