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{6ccfd995-07be-49cf-8ad6-1422dc08761a}gt.sys

snipsmart

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {6ccfd995-07be-49cf-8ad6-1422dc08761a}gt.sys by snipsmart has been detected as adware by 13 anti-malware scanners. It runs as a Windows kernel mode device driver named “{6ccfd995-07be-49cf-8ad6-1422dc08761a}Gt”. 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 snipsmart)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
9dc34c39edd545ead22c09a44daf2a62

SHA-1:
4754afc887266c579ac8a389576494e3687f63b3

SHA-256:
79e85ed59864a01580cdb3a3de6943fd4f2b6903fddef97baac4f0188800ced5

Scanner detections:
13 / 68

Status:
Adware

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

Analysis date:
4/24/2024 12:52:15 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Yotoon
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.282
7.11.173.122

AVG
Generic
2015.0.3342

F-Prot
W32/A-a734b66a
v6.4.7.1.166

herdProtect (fuzzy)
variant of {6ccfd995-07be-49cf-8ad6-1422dc08761a}t.sys (Adware)
2014.12.5.19

IKARUS anti.virus
PUA.RiskWare.NetFilter
t3scan.1.7.5.0

McAfee
Artemis!F288F51A3E53
5600.6998

NANO AntiVirus
Riskware.Win32.Yotoon.denstu
0.28.2.62151

Qihoo 360 Security
Win32/Virus.Adware.37c
1.0.0.1015

Reason Heuristics
PUP.snipsmart.l
14.9.23.15

Trend Micro House Call
Suspicious_GEN.F47V0907
7.2.266

VIPRE Antivirus
Threat.4150696
32938

Zillya! Antivirus
Adware.Yotoon.Win64.6
2.0.0.1927

File size:
54.5 KB (55,824 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\{6ccfd995-07be-49cf-8ad6-1422dc08761a}gt.sys

Digital Signature
Signed by:
snipsmart

Authority:
VeriSign, Inc.

Valid from:
8/4/2014 7:00:00 PM

Valid to:
8/5/2015 6:59:59 PM

Subject:
CN=snipsmart, O=snipsmart, 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:
44017A0654590E4048857CE5A4A44F1A

File PE Metadata
Compilation timestamp:
9/22/2014 2:01:43 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lo6LohZZMITF7zKLV3fXoKKxaFtFkW4VIWPLqvH9EQZLN+p60CeYliQSN/:lo6+pT1UvYDEHFV4nPe/kpvCeMiQSd

Entry address:
0xA9BE

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 2A, E4, FF, FF, CC, CC, 34, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, AE, 00, 00, 94, 93, 00, 00, 20, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3A, AE, 00, 00, 80, 93, 00, 00, 2C, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 56, AE, 00, 00, 8C, 93, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 26, AE, 00, 00, 12, AE, 00, 00, 00, 00, 00, 00, 42, AE, 00, 00, 00, 00, 00, 00, 2C, AB, 00, 00, 44, AB, 00, 00, 56, AB...
 
[+]

Entropy:
6.3449

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{6ccfd995-07be-49cf-8ad6-1422dc08761a}Gt

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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