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{ae24b8e9-87c8-4e2f-a7b1-1df843a4c9c9}gw.sys

Krab Web

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {ae24b8e9-87c8-4e2f-a7b1-1df843a4c9c9}gw.sys by Krab Web has been detected as adware by 21 anti-malware scanners. It runs as a Windows kernel mode device driver named “{ae24b8e9-87c8-4e2f-a7b1-1df843a4c9c9}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 Krab Web)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
bf5290351f2fb4d09be044976611fbff

SHA-1:
55047e2d5de06d59b00e1b2a23a8c590202eeee1

SHA-256:
5bb9a70372ee82e03d4466a2ee3d0fc9a574351394a07594e85821cd7517ddf0

Scanner detections:
21 / 68

Status:
Adware

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

Analysis date:
4/26/2024 2:04:25 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.V
6212261

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.197.26

avast!
Win32:BrowseFox-FD [PUP]
141214-1

AVG
Generic
2015.0.3253

Bitdefender
Adware.BrowseFox.V
1.0.20.1775

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/19819

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20438

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.BrowseFox.V
9.0.0.4668

ESET NOD32
Win64/BrowseFox.AU potentially unwanted application
7.0.302.0

F-Prot
W32/A-76f53fd6
v6.4.7.1.166

F-Secure
Adware.BrowseFox.V
5.13.68

G Data
Adware.BrowseFox
14.12.24

MicroWorld eScan
Adware.BrowseFox.V
15.0.0.1065

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.28.6.64267

Norman
Adware.BrowseFox.V
04.12.2014 14:30:06

nProtect
Adware.BrowseFox.V
14.12.19.01

Reason Heuristics
PUP.KrabWeb.l
14.12.21.22

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.4150696
35418

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\{ae24b8e9-87c8-4e2f-a7b1-1df843a4c9c9}gw.sys

Digital Signature
Signed by:
Krab Web

Authority:
VeriSign, Inc.

Valid from:
10/6/2014 7:00:00 PM

Valid to:
10/7/2015 6:59:59 PM

Subject:
CN=Krab Web, O=Krab Web, 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:
7267FFF9DE9B65FB24D2CA9CB6A3E8F9

File PE Metadata
Compilation timestamp:
11/28/2014 11:50:17 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:FN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddby:HhUcpH/0+LCf7EziDHhd0

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:
6.6138

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{ae24b8e9-87c8-4e2f-a7b1-1df843a4c9c9}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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