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164ea663_stp.exe

Between Lines

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application 164ea663_stp.exe by Between Lines has been detected as adware by 20 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. 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. It is also typically executed from the user's temporary directory.
Publisher:
Between Lines  (signed and verified)

MD5:
a0016d1b4f7e3a81882cb10091a23533

SHA-1:
f7dddb4687abe03909479ee70b6f76c42f9e5c26

SHA-256:
012628a355c671d9cb98ac630f2ac9504c1d95febf5a3e9ba621a8ea49ffdb87

Scanner detections:
20 / 68

Status:
Adware

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

Analysis date:
2/25/2025 2:09:16 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
ADWARE/BrowseFox.Gen
3.6.1.96

AVG
Could be an adware BrowseFox
2016.0.3151

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1542

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Yontoo.1734
9.0.1.092

ESET NOD32
Win32/BrowseFox.AV potentially unwanted application
9.7.0.302.0

G Data
NSIS.Application.BrowseFox
15.4.25

herdProtect (fuzzy)
variant of 1qvrflepsta==3.exe (Adware)
2015.7.7.9

K7 AntiVirus
Unwanted-Program
13.204.16103

Kaspersky
not-a-virus:HEUR:AdWare.NSIS.Zaitu
14.0.0.1773

Malwarebytes
PUP.Optional.Airglobe
v2015.07.07.09

McAfee
Artemis!A0016D1B4F7E
5600.6807

NANO AntiVirus
Trojan.Win32.Siggen6.droatj
0.30.24.1636

Qihoo 360 Security
HEUR/QVM42.0.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.Yontoo
15.4.2.15

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.15331

Sophos
Browse Fox
4.98

Trend Micro House Call
Suspicious_GEN.F47V0313
7.2.92

VIPRE Antivirus
Threat.4150696
40552

File size:
464.8 KB (476,000 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\164ea663_stp.exe

Digital Signature
Signed by:
Between Lines

Authority:
VeriSign, Inc.

Valid from:
2/22/2015 7:00:00 PM

Valid to:
2/23/2016 6:59:59 PM

Subject:
CN=Between Lines, O=Between Lines, L=San Diego, 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:
0BAD3D665CB44E6E0042FF4A69E2ACFE

File PE Metadata
Compilation timestamp:
12/5/2009 5:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:jXHn1s15Ap/G/8/3D0Fw/tN8dkmLtpHHHrh7Y:jXH6j8/z0FmcLbH1Y

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9740

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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