home

{ef8714df-a44b-464c-9034-549a70dc4cd7}t.sys

maucampo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {ef8714df-a44b-464c-9034-549a70dc4cd7}t.sys by maucampo has been detected as adware by 18 anti-malware scanners. It runs as a Windows kernel mode device driver named “{ef8714df-a44b-464c-9034-549a70dc4cd7}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 maucampo)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
cd514468517d0327807005e62cd4ed51

SHA-1:
81793c9b798fa064bb9189d6bd134397c3f11d50

SHA-256:
e7295b4bcfc3477d82c9d2762206b045b0186867e1814fa53ae3b56e90c805fc

Scanner detections:
18 / 68

Status:
Adware

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

Analysis date:
4/19/2024 11:11:32 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.06.04

Avira AntiVirus
ADWARE/BrowseFox.A.28
8.3.1.6

avast!
Win32:BrowseFox-HT [PUP]
2014.9-160207

AVG
Maucampo
2017.0.2841

Bkav FE
W32.BrowseFoxM.Adware
1.3.0.6267

Clam AntiVirus
Win.Adware.Netfilter-130
0.98/20550

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20698

Dr.Web
Trojan.Yontoo.1741
9.0.1.038

F-Prot
W32/A-dd00b781
v6.4.7.1.166

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.7.5.0

McAfee
Artemis!D71CFADDCCBD
5600.6497

NANO AntiVirus
Trojan.Win32.BPlug.dcxxfx
0.28.2.61861

Reason Heuristics
PUP.Yontoo.maucampo (M)
16.2.7.9

Trend Micro House Call
Suspicious_GEN.F47V0826
7.2.38

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
32624

Zillya! Antivirus
Adware.Yotoon.Win64.2
2.0.0.1905

File size:
53.8 KB (55,096 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\{ef8714df-a44b-464c-9034-549a70dc4cd7}t.sys

Digital Signature
Signed by:
maucampo

Authority:
VeriSign, Inc.

Valid from:
11/27/2013 8:00:00 AM

Valid to:
11/28/2014 7:59:59 AM

Subject:
CN=maucampo, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=maucampo, L=San Diego, 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:
40BF170484E09DB904849DB86C86A494

File PE Metadata
Compilation timestamp:
8/7/2014 7:52:31 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:uOnnE+ZwNszUTw/RqzGojR/h3cKG45q30XGBUuJ0xEkMHd8OagKmvz11/6RRRVmd:VnERxTukHzTrGCuGOVh1/yR2d

Entry address:
0xA6BE

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 4A, E4, FF, FF, CC, CC, 34, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, AB, 00, 00, 94, 90, 00, 00, 20, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3A, AB, 00, 00, 80, 90, 00, 00, 2C, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 56, 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, 26, AB, 00, 00, 12, AB, 00, 00, 00, 00, 00, 00, 42, AB, 00, 00, 00, 00, 00, 00, 2C, A8, 00, 00, 44, A8, 00, 00, 56, A8...
 
[+]

Entropy:
6.3392

Code size:
36.3 KB (37,120 bytes)

Driver
Display name:
{ef8714df-a44b-464c-9034-549a70dc4cd7}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


Remove {ef8714df-a44b-464c-9034-549a70dc4cd7}t.sys - Powered by Reason Core Security
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.