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1ab10rn3.exe

Cyti Web

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application 1ab10rn3.exe by Cyti Web has been detected as adware by 18 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. The file has been seen being downloaded from install-cdn.cytiweb.net.
Publisher:
Cyti Web  (signed and verified)

MD5:
bfaab60859ec3761edeb54dbae018773

SHA-1:
060244435f8fe7e80bf390e151efc8416f4dd464

SHA-256:
9e1297941e55e8778419c77919199cc347401ecfb3bb4661be4bc86fb5cdc592

Scanner detections:
18 / 68

Status:
Adware

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

Analysis date:
12/26/2024 8:01:57 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.SwiftBrowse
2015.01.05

Avira AntiVirus
ADWARE/BrowseFox.Gen
7.11.199.110

avast!
NSIS:BrowseFox-D [PUP]
2014.9-150104

AVG
Generic
2016.0.3239

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1514

Dr.Web
Trojan.BPlug.181
9.0.1.04

ESET NOD32
Win32/BrowseFox
9.10963

Fortinet FortiGate
Riskware/BrowseFox
1/4/2015

F-Prot
W32/S-b5aa130f
v6.4.7.1.166

G Data
NSIS.Application.BrowseFox
15.1.24

Malwarebytes
PUP.Optional.BPlug
v2015.01.04.08

McAfee
Artemis!BFAAB60859EC
5600.6895

NANO AntiVirus
Trojan.Win32.BPlug.dfsehz
0.30.0.64448

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

Reason Heuristics
PUP.CytiWeb.I
15.1.4.20

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.15102

Sophos
Generic PUA AG
4.98

VIPRE Antivirus
Trojan.Win32.Generic
36362

File size:
569.7 KB (583,344 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\1ab10rn3.exe

Digital Signature
Signed by:
Cyti Web

Authority:
VeriSign, Inc.

Valid from:
11/19/2014 2:00:00 AM

Valid to:
11/20/2015 1:59:59 AM

Subject:
CN=Cyti Web, O=Cyti Web, 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:
2EA907673DCE80C1AF3DAA010B4C3CA9

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:o1J+ZpQ1s15Ap/G/8/3D0Fw/tN8dkmLtpHHHrh75cVG/h6ijpI:o1JI26j8/z0FmcLbH1iMrI

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:
7.9812

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file 1ab10rn3.exe has been seen being distributed by the following URL.

http://install-cdn.cytiweb.net/sd?is=ob

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