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{efa349b9-003c-4506-9e55-957c1cff853c}w64.sys

SmarterPower

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {efa349b9-003c-4506-9e55-957c1cff853c}w64.sys by SmarterPower has been detected as adware by 15 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{efa349b9-003c-4506-9e55-957c1cff853c}w64”.
Publisher:
StdLib  (signed by SmarterPower)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
584468a629a698748f5578bab5bfd710

SHA-1:
72164160e1700971beaa6d57b42f057ef1dfad48

SHA-256:
377e4c07573915b34abc42412dd2d488f1e3a93e247d2925a2d78ff953285df8

Scanner detections:
15 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/19/2024 8:20:28 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
832

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
Generic
2015.0.3310

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.1490

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21411

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.14.10.25.06

F-Prot
W64/A-bd57be8c
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
11.2014-25-10_7

G Data
Adware.SwiftBrowse.CH
14.10.24

MicroWorld eScan
Adware.SwiftBrowse.CH
15.0.0.894

nProtect
Adware.SwiftBrowse.CH
14.10.24.01

Reason Heuristics
PUP.SmarterPower.m
14.10.25.17

Sophos
Browse Fox
4.98

VIPRE Antivirus
Threat.4150696
34232

File size:
47.6 KB (48,792 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{efa349b9-003c-4506-9e55-957c1cff853c}w64.sys

Digital Signature
Signed by:
SmarterPower

Authority:
VeriSign, Inc.

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

Valid to:
8/5/2015 7:59:59 PM

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 3:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:l/7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3IUznf:RFID6EGnLA8AFJTNEVmDI

Entry address:
0xC064

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, E2, 50, FF, FF, CC, CC, 78, C2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 54, C6, 00, 00, A0, 91, 00, 00, 28, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DA, CA, 00, 00, 50, 90, 00, 00, D8, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D2, CB, 00, 00, 00, 90, 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, B6, CB, 00, 00, 00, 00, 00, 00, A2, CB, 00, 00...
 
[+]

Entropy:
6.3917

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{efa349b9-003c-4506-9e55-957c1cff853c}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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