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{a3f28269-ad17-41a8-b032-3e0313ef8979}t64.sys

Greener Web

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {a3f28269-ad17-41a8-b032-3e0313ef8979}t64.sys by Greener Web has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a Windows 64-bit kernel mode device driver named “{a3f28269-ad17-41a8-b032-3e0313ef8979}t64”.
Publisher:
StdLib  (signed by Greener Web)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
09769028c77e6bc55ef03d6be222a013

SHA-1:
e7db82e6e94fed0fd85403f61d4f6d55b9cb6b1c

SHA-256:
563854e5aa529a7014287d847165550a2c29c147fbae39b4feb25d8672784d4a

Scanner detections:
1 / 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:
4/23/2024 9:17:21 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.GreenerWeb (M)
16.2.3.21

File size:
58.6 KB (59,992 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{a3f28269-ad17-41a8-b032-3e0313ef8979}t64.sys

Digital Signature
Signed by:
Greener Web

Authority:
DigiCert Inc

Valid from:
6/5/2014 2:00:00 AM

Valid to:
6/10/2015 2:00:00 PM

Subject:
CN=Greener Web, O=Greener Web, L=Santa Monica, S=California, C=US

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
07CF8E3C70EA58D06FE678225FF74862

File PE Metadata
Compilation timestamp:
1/31/2014 1:46:41 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
1536:0A0Ep72J9xc1JUzUPU/qnIy4fNwQKZzrtW+DGbwofo:90G72J8YvqIy4fNwQKNrtNDGU0o

Entry address:
0x10064

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, 8E, B3, FF, FF, CC, CC, D0, 00, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 40, 05, 01, 00, 10, C0, 00, 00, C0, 00, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 62, 05, 01, 00, 00, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 4E, 05, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3C, 02, 01, 00, 00, 00, 00, 00, 50, 02, 01, 00, 00, 00, 00, 00, 6E, 02, 01, 00...
 
[+]

Code size:
45 KB (46,080 bytes)

Driver
Display name:
{a3f28269-ad17-41a8-b032-3e0313ef8979}t64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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.