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{c9fb27aa-f512-464b-babd-d42f0443465f}w.sys

SmarterPower

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {c9fb27aa-f512-464b-babd-d42f0443465f}w.sys by SmarterPower has been detected as adware by 15 anti-malware scanners. It runs as a Windows kernel mode device driver named “{c9fb27aa-f512-464b-babd-d42f0443465f}w”. 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 SmarterPower)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
ff6d47c53479b8b1e003d8b4558be9ad

SHA-1:
812eaf7c68fc30da2997a45bff2a78b8895b77aa

SHA-256:
cd92a0dd3b3a0c627594599dad2d30e1a58b724dd48a140ac5ef28775bd6e6a3

Scanner detections:
15 / 68

Status:
Adware

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

Analysis date:
4/24/2024 1:23:42 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.178.236

AVG
Generic
2015.0.3313

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.141022

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

Dr.Web
Tool.NetFilter.313
9.0.1.0295

ESET NOD32
Win64/BrowseFox (variant)
8.10575

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

IKARUS anti.virus
AdWare.BrowseFox
t3scan.1.7.8.0

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.28.2.62671

Reason Heuristics
PUP.SmarterPower.k
14.10.22.16

Sophos
Browse Fox
4.98

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Adware.BrowseFox
33980

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.1957

File size:
42.1 KB (43,160 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\{c9fb27aa-f512-464b-babd-d42f0443465f}w.sys

Digital Signature
Signed by:
SmarterPower

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 1:00:00 AM

Valid to:
8/6/2015 12:59:59 AM

Subject:
CN=SmarterPower, O=SmarterPower, 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:
38D7C83A73CB4E3AC85648608E3170D8

File PE Metadata
Compilation timestamp:
9/22/2014 8:01:51 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:jN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddzzn:phUcpH/0+LCf7EziDHhd

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...
 
[+]

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{c9fb27aa-f512-464b-babd-d42f0443465f}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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