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{2ecad685-1644-4a6c-a1ca-055e8d6442fb}w64.sys

Lemurleap

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {2ecad685-1644-4a6c-a1ca-055e8d6442fb}w64.sys by Lemurleap has been detected as adware by 12 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{2ecad685-1644-4a6c-a1ca-055e8d6442fb}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 Lemurleap)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
8931265b73b8300c26ad2ab36a9d4d7d

SHA-1:
bded7475020e1690880bf93a91204d5d1a99073c

SHA-256:
26aeb820ff6b3b3751093c708e4fa2d7089f7800bf51a16906410b742dc60198

Scanner detections:
12 / 68

Status:
Adware

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

Analysis date:
4/24/2024 4:42:29 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.03

AVG
Lemurleap
2017.0.2835

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16213

Dr.Web
Trojan.BPlug.123
9.0.1.044

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.7.5.0

McAfee
Artemis!0874379F9DA1
5600.6491

Reason Heuristics
PUP.Yontoo.Lemurleap (M)
16.2.13.10

Sophos
BrowseSmart
4.98

Trend Micro House Call
Suspicious_GEN.F47V0816
7.2.44

VIPRE Antivirus
Trojan.Win32.Generic
32766

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1908

File size:
47.3 KB (48,408 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\{2ecad685-1644-4a6c-a1ca-055e8d6442fb}w64.sys

Digital Signature
Signed by:
Lemurleap

Authority:
COMODO CA Limited

Valid from:
5/7/2014 2:00:00 AM

Valid to:
5/8/2015 1:59:59 AM

Subject:
CN=Lemurleap, O=Lemurleap, STREET=10620 Treena Street Suite 230, L=San Diego, S=Ca, PostalCode=92131, C=US

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
015F3E368C995EC152965B1AABC50D9E

File PE Metadata
Compilation timestamp:
9/22/2014 9:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lE7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3x2+7l5:iFID6EGnLA8AFJTNEVmDx37r

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:
6.3804

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{2ecad685-1644-4a6c-a1ca-055e8d6442fb}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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