setup.exe

trolatunt

This is the installer and setup program from the trolatunt 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 trolatunt 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:
trolatunt  (signed and verified)

MD5:
ba10ada19c1f4f6ab6c6b8dc45323ec4

SHA-1:
6fa3453d868ea7e592abdecc359b624d6d770311

SHA-256:
6f53449ebb3f84aecd1d7aa8941062a05a9707c564616341969ac884f92830be

Scanner detections:
21 / 68

Status:
Adware

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

Analysis date:
4/26/2024 11:06:17 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Rootkit.14176
925

Agnitum Outpost
Trojan.BPlug
7.1.1

AVG
BrowseFox
2015.0.3403

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14725

Bitdefender
Rootkit.14176
1.0.20.1030

Dr.Web
Trojan.BPlug.90
9.0.1.0206

Emsisoft Anti-Malware
Rootkit.14176
8.14.07.25.10

ESET NOD32
Win32/BrowseFox
8.10039

Fortinet FortiGate
Riskware/BrowseFox
7/25/2014

F-Secure
Rootkit.14176
11.2014-25-07_6

IKARUS anti.virus
Rootkit
t3scan.1.6.1.0

Malwarebytes
PUP.Optional.Trolatunt.A
v2014.07.25.10

McAfee
Artemis!A0A088C41104
5600.7059

MicroWorld eScan
Rootkit.14176
15.0.0.618

NANO AntiVirus
Trojan.Win32.BPlug.dbonrn
0.28.0.60577

Qihoo 360 Security
HEUR/Malware.QVM06.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.trolatunt.F
14.7.25.10

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14723

SUPERAntiSpyware
Adware.BrowseFox/Variant
10462

Trend Micro House Call
Suspici.F184F561
7.2.206

VIPRE Antivirus
Trojan.Win32.Generic
30918

File size:
2 MB (2,066,160 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:

Authority:
VeriSign, Inc.

Valid from:
8/21/2013 6:00:00 AM

Valid to:
8/21/2015 5:59:59 AM

Subject:
CN=trolatunt, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=trolatunt, 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:
16E5B55BC9746E627E43F6A38DDE3E80

File PE Metadata
Compilation timestamp:
12/6/2009 4:52:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:slCHKfca8woz0g5AfIxtnps67xUYvK8Bl8gb0lezspCHO8:slCHKfc7tz0F4tnpXUGl8eYezspCHf

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:
7.9975

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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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