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setup.exe

Jotzey

This is the installer and setup program from the Jotzey branded Yontoo adware web browser extension. This adware injects various forms of advertisements in the user's web browser based on the HTML content and URLs viewed. Ad include banners, in-line context text links, coupons, and search. The program will install an auto-updating background service that will update the software with additional features. The application setup.exe by Jotzey has been detected as adware by 21 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.
Publisher:
Jotzey  (signed and verified)

MD5:
3194632ede3d32fe6b7861cb0cdb3e3c

SHA-1:
16c9b5b9358b5a6de143c5271671f16ccd7a6c92

SHA-256:
601be9bea8b72e8054cc5ea6a444062dd8bd96d51b014de5f94bf9ea7a014782

Scanner detections:
21 / 68

Status:
Adware

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

Analysis date:
1/14/2025 10:55:15 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Agent
7.1.1

avast!
PUP-gen [PUP]
140908-2

AVG
Adware BrowseFox.F
2014.0.4015

Comodo Security
Application.Win32.Altbrowse.AK
18075

Dr.Web
Trojan.BPlug.31
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Adware.BHO.Agent
14.09.12

ESET NOD32
Win32/BrowseFox.C potentially unwanted application
7.0.302.0

IKARUS anti.virus
not-a-virus:AdWare.Win32.Agent
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.176.11711

Kaspersky
not-a-virus:AdWare.Win32.Agent
15.0.0.494

Malwarebytes
PUP.Optional.Jotzey.A
v2014.09.12.06

McAfee
Artemis!3194632EDE3D
5600.7010

NANO AntiVirus
Riskware.Win32.Agent.cummdd
0.28.0.59048

Quick Heal
AdWare.Agent.ahbx (Not a Virus)
9.14.12.00

Reason Heuristics
PUP.Installer.Jotzey.F
14.3.16.8

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14910

Sophos
Generic PUA JC
4.98

SUPERAntiSpyware
Adware.BrowseFox/Variant
10364

Trend Micro House Call
TROJ_GEN.F47V0318
7.2.255

Vba32 AntiVirus
AdWare.Agent
3.12.26.0

VIPRE Antivirus
Threat.4741131
32938

File size:
2.8 MB (2,916,992 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\setup.exe

Digital Signature
Signed by:
Jotzey

Authority:
VeriSign, Inc.

Valid from:
1/12/2014 3:00:00 AM

Valid to:
1/13/2015 2:59:59 AM

Subject:
CN=Jotzey, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Jotzey, 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:
4C7B335D1F24250859B4B5C0085A062C

File PE Metadata
Compilation timestamp:
12/6/2009 1:52:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:EWF8ABAdRiO/BPz0gp2i7QvxgIL7i35PTPHauVKnA/u8AVZ15xRgolrsPWl8os:EWuABWR/JPz0G2i7QvxgG7ihzHau8n52

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:
7.9987

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file setup.exe has been seen being distributed by the following URL.

http://install-cdn.jotzey.net/setup.exe

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to wac.edgecastcdn.net  (72.21.81.13:80)

TCP (HTTP):
Connects to service.yontoo.com  (8.25.35.148:80)

TCP (HTTP):
Connects to api.yontoo.com  (8.25.35.15:80)

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