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{6fcd6092-9615-4f7f-8898-8df53980e5d2}w64.sys

NetCrawl

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {6fcd6092-9615-4f7f-8898-8df53980e5d2}w64.sys by NetCrawl has been detected as adware by 27 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{6fcd6092-9615-4f7f-8898-8df53980e5d2}w64”. 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 NetCrawl)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
1040c85b4f0c85e5b0b198c23d9e2477

SHA-1:
4f442a6f053d16a46261a4f5120f1aa1034e7e88

SHA-256:
0794b5700b9bc1be7e92dbb30d7eaa9621088e89e283996e1112d0bdc4e93e64

Scanner detections:
27 / 68

Status:
Adware

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

Analysis date:
4/23/2024 4:23:22 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.L
867

Agnitum Outpost
PUA.Yotoon
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.15

Avira AntiVirus
APPL/BrowseFox.zta
7.11.171.22

avast!
Win64:Malware-gen
2014.9-140920

AVG
NetCrawl
2015.0.3345

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14920

Bitdefender
Adware.SwiftBrowse.L
1.0.20.1315

Comodo Security
UnclassifiedMalware
18740

Dr.Web
Trojan.BPlug.123
9.0.1.0263

Emsisoft Anti-Malware
Adware.SwiftBrowse.L
8.14.09.20.09

ESET NOD32
Win64/Riskware.NetFilter.F application
8.7.0.302.0

F-Prot
W64/A-a8e2f748
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.L
11.2014-20-09_7

G Data
Adware.SwiftBrowse
14.9.24

herdProtect (fuzzy)
variant of {c486bc7a-4f2c-4a8b-ac38-4952f70809b9}gw64.sys (Adware)
2014.12.3.10

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.7.8.0

Malwarebytes
PUP.Optional.NetFilter
v2014.09.20.09

McAfee
Artemis!EB4C2DE4F874
5600.7001

MicroWorld eScan
Adware.SwiftBrowse.L
15.0.0.789

nProtect
Adware.SwiftBrowse.L
14.05.23.01

Qihoo 360 Security
Win32/Trojan.RiskWare.a25
1.0.0.1015

Reason Heuristics
PUP.NetCrawl.m
14.9.20.21

Sophos
BrowseSmart
4.98

Trend Micro House Call
TROJ_GEN.F47V0523
7.2.263

VIPRE Antivirus
Trojan.Win32.Generic
33126

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1922

File size:
59.7 KB (61,112 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{6fcd6092-9615-4f7f-8898-8df53980e5d2}w64.sys

Digital Signature
Signed by:
NetCrawl

Authority:
VeriSign, Inc.

Valid from:
4/28/2014 7:00:00 PM

Valid to:
4/29/2015 6:59:59 PM

Subject:
CN=NetCrawl, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=NetCrawl, 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:
3C05F8D25EB72CD5B6EB863AA0585F70

File PE Metadata
Compilation timestamp:
8/6/2014 6:52:18 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:uot2dxF9O8ZF33iqiIy9387Hp9XcfBzSowidIOk:u9JRicy938Lp9eW1jx

Entry address:
0xF064

Entry point:
48, 83, EC, 28, 4C, 8B, C2, 4C, 8B, C9, E8, 95, FF, FF, FF, 49, 8B, D0, 49, 8B, C9, 48, 83, C4, 28, E9, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 00, 00, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9A, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Entropy:
5.9520

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{6fcd6092-9615-4f7f-8898-8df53980e5d2}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.