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{3d0ff4a0-421f-4b33-a4ec-b4f95b34c8de}gw.sys

Klip Pal

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {3d0ff4a0-421f-4b33-a4ec-b4f95b34c8de}gw.sys by Klip Pal has been detected as adware by 14 anti-malware scanners. It runs as a Windows kernel mode device driver named “{3d0ff4a0-421f-4b33-a4ec-b4f95b34c8de}Gw”. 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:
1.4.4.6 built by: WinDDK

MD5:
919d3531284bcf44ed95f1b367e177bf

SHA-1:
926db5c33ee1464644a7b5f45e2f782adda0ced9

SHA-256:
665292b883ed891731502a619aa771f269bc444988e132da5a9d23693aa83b3f

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/18/2024 11:34:59 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.182.172

AVG
Generic
2015.0.3304

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.141031

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/21411

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

ESET NOD32
Win64/BrowseFox (variant)
8.10653

F-Prot
W32/A-248e95ab
v6.4.7.1.166

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.28.6.62995

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.KlipPal.l
14.10.31.20

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
34416

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.1973

File size:
42.1 KB (43,152 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{3d0ff4a0-421f-4b33-a4ec-b4f95b34c8de}gw.sys

Digital Signature
Signed by:
Klip Pal

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 3:00:00 AM

Valid to:
8/6/2015 2:59:59 AM

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 10:01:51 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:nN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJdd7Jxuin:NhUcpH/0+LCf7EziDHhdVuw

Entry address:
0xA03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 70, FF, FF, CC, CC, 94, A1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, CE, A4, 00, 00, E0, 80, 00, 00, B4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 24, A5, 00, 00, 00, 80, 00, 00, EC, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A4, A9, 00, 00, 38, 80, 00, 00, C4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9C, AA, 00, 00, 10, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, FC, A4, 00, 00, 10, A5, 00, 00, E8, A4...
 
[+]

Entropy:
6.6161

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{3d0ff4a0-421f-4b33-a4ec-b4f95b34c8de}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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