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{bb095371-c900-4f52-bddd-25e46ecbe406}gt.sys

Klip Pal

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {bb095371-c900-4f52-bddd-25e46ecbe406}gt.sys by Klip Pal has been detected as adware by 13 anti-malware scanners. It runs as a Windows kernel mode device driver named “{bb095371-c900-4f52-bddd-25e46ecbe406}Gt”. 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 Klip Pal)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
5c761c59be42e9daecbe302f23208175

SHA-1:
07a689a0045c614fbf37a43005f73132312bb49f

SHA-256:
f4d7309d5401e02df532ad3e769d111783980ac6a3c8e83e6b29685ccebbf604

Scanner detections:
13 / 68

Status:
Adware

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

Analysis date:
4/26/2024 10:32:57 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.15
7.11.182.116

AVG
Generic
2015.0.3305

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.141030

Clam AntiVirus
Win.Adware.Netfilter-130
0.98/21411

Dr.Web
Trojan.BPlug.123
9.0.1.05190

ESET NOD32
Win64/BrowseFox (variant)
8.10646

F-Prot
W32/A-09a5f424
v6.4.7.1.166

IKARUS anti.virus
PUA.RiskWare.NetFilter
t3scan.1.8.3.0

NANO AntiVirus
Riskware.Win32.NetFilter.dgqvkd
0.28.6.62995

Reason Heuristics
PUP.KlipPal.l
14.10.30.16

VIPRE Antivirus
Threat.4150696
34232

Zillya! Antivirus
Adware.Yotoon.Win64.10
2.0.0.1972

File size:
54.5 KB (55,824 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\{bb095371-c900-4f52-bddd-25e46ecbe406}gt.sys

Digital Signature
Signed by:
Klip Pal

Authority:
VeriSign, Inc.

Valid from:
8/4/2014 8:00:00 PM

Valid to:
8/5/2015 7:59:59 PM

Subject:
CN=Klip Pal, O=Klip Pal, L=Santa Monica, 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:
59A8A4CF2048A90F9AE8754A98A645E4

File PE Metadata
Compilation timestamp:
9/22/2014 3:01:43 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:Co6LohZZMITF7zKLV3fXoKKxaFtFkW4VIWPLqvH9EQZLN+p60CeUJ5/:Co6+pT1UvYDEHFV4nPe/kpvCeI

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:
6.3466

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{bb095371-c900-4f52-bddd-25e46ecbe406}Gt

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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