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tstlibg.sys

Jump Flip

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file tstlibg.sys by Jump Flip has been detected as adware by 15 anti-malware scanners. It runs as a Windows kernel mode device driver named “tStLibG”. 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 Jump Flip)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
dfa85412e50f8a64e286b8ef419fcb48

SHA-1:
7d3dd3805d9c4492da4e5d66352350ab36435e36

SHA-256:
6d831df4c788f62dd2804940c4f96e3124fd0e611acc524c4b44b3757424cbc3

Scanner detections:
15 / 68

Status:
Adware

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

Analysis date:
4/25/2024 10:52:16 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.BPlug
7.1.1

Avira AntiVirus
Adware/SpadeCast.A.282
7.11.170.44

AVG
Generic
2015.0.3267

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14127

Dr.Web
Trojan.BPlug.117
9.0.1.0341

herdProtect (fuzzy)
variant of {2b929fe1-284b-4766-afb9-19b0915b99b0}t.sys (Adware)
2014.12.7.23

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.7.5.0

McAfee
Artemis!815A4435A039
5600.6923

NANO AntiVirus
Trojan.Win32.BPlug.dcxxfx
0.28.2.61721

Panda Antivirus
Adware/BrowserFox
14.12.07.06

Reason Heuristics
Adware.Yontoo.JumpFlip.K
14.9.26.2

Trend Micro House Call
Suspicious_GEN.F47V0727
7.2.341

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.4150696
32210

Zillya! Antivirus
Adware.Yotoon.Win64.2
2.0.0.1900

File size:
53.9 KB (55,232 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\tstlibg.sys

Digital Signature
Signed by:
Jump Flip

Authority:
VeriSign, Inc.

Valid from:
8/22/2013 2:00:00 AM

Valid to:
8/23/2015 1:59:59 AM

Subject:
CN=Jump Flip, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Jump Flip, 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:
144CF0B61216826C7F439B5C91A6ABD6

File PE Metadata
Compilation timestamp:
1/31/2014 1:46:38 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:V9bP7EDNtMTw/RWDjR/McKV5qEXGBJgxgZ+4AOmvtnBU6+RRsNQB:vP7EJSTukuzTrGYs+JNBUtRjB

Entry address:
0xA73E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, CA, E3, FF, FF, CC, CC, B4, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 84, AB, 00, 00, 94, 90, 00, 00, A0, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BA, AB, 00, 00, 80, 90, 00, 00, AC, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D6, AB, 00, 00, 8C, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, AB, 00, 00, 92, AB, 00, 00, 00, 00, 00, 00, C2, AB, 00, 00, 00, 00, 00, 00, AC, A8, 00, 00, C4, A8, 00, 00, D6, A8...
 
[+]

Code size:
36.3 KB (37,120 bytes)

Driver
Display name:
tStLibG

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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