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{57f143ae-1ecd-493d-9ddb-32c45a3cecd5}t.sys

NetCrawl

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {57f143ae-1ecd-493d-9ddb-32c45a3cecd5}t.sys by NetCrawl has been detected as adware by 14 anti-malware scanners. It runs as a Windows kernel mode device driver named “{57f143ae-1ecd-493d-9ddb-32c45a3cecd5}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 NetCrawl)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
eb8589adb17cc38455be3258dc396314

SHA-1:
aca948ec805350d22ef67d4fb4dba9a5f1192b8f

SHA-256:
23f404b18b469ac65d976edeffde405e6c5946ece3605da7e9bc05196f12b857

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/26/2024 8:36:32 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.BPlug
7.1.1

Avira AntiVirus
APPL/BrowseFox.zta
7.11.170.158

AVG
NetCrawl
2015.0.3342

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14923

Dr.Web
Trojan.BPlug.117
9.0.1.0266

G Data
Win32.Application.Browsefox
14.12.24

herdProtect (fuzzy)
variant of {6fcd6092-9615-4f7f-8898-8df53980e5d2}t.sys (Adware)
2014.12.5.18

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.6.1.0

McAfee
Artemis!B98985B3321F
5600.6998

NANO AntiVirus
Trojan.Win32.BPlug.dcxxfx
0.28.2.61148

Reason Heuristics
PUP.NetCrawl.k
14.9.23.14

Trend Micro House Call
Suspicious_GEN.F47V0716
7.2.266

VIPRE Antivirus
Trojan.Win32.Generic
31110

Zillya! Antivirus
Adware.Yotoon.Win64.2
2.0.0.1909

File size:
53.9 KB (55,224 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\{57f143ae-1ecd-493d-9ddb-32c45a3cecd5}t.sys

Digital Signature
Signed by:
NetCrawl

Authority:
VeriSign, Inc.

Valid from:
4/28/2014 8:00:00 PM

Valid to:
4/29/2015 7:59:59 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:
1/30/2014 7:46:38 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:VRbP7EDNtMTw/RWDjR/McKV5qEXGBJgxgZ+4AOmvtnBU6+RRACr:bP7EJSTukuzTrGYs+JNBUtRT

Entry address:
0xA73E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, CA, E3, FF, FF, CC, CC, B4, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 84, AB, 00, 00, 94, 90, 00, 00, A0, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BA, AB, 00, 00, 80, 90, 00, 00, AC, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D6, AB, 00, 00, 8C, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, AB, 00, 00, 92, AB, 00, 00, 00, 00, 00, 00, C2, AB, 00, 00, 00, 00, 00, 00, AC, A8, 00, 00, C4, A8, 00, 00, D6, A8...
 
[+]

Code size:
36.3 KB (37,120 bytes)

Driver
Display name:
{57f143ae-1ecd-493d-9ddb-32c45a3cecd5}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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