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agent_setup.exe

Agent

BetterSoft

This uses the software InstalleRex download manager which bundles a number of adware plugin and browser extensions and is distributed via TusFiles. The application agent_setup.exe has been detected as a potentially unwanted program by 17 anti-malware scanners. The program is a setup application that uses the Tarma Installer installer, however the file is not signed with an authenticode signature from a trusted source. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
BetterSoft

Product:
Agent

Description:
Installer

Version:
2013.1.23.2201

MD5:
a8d875d352c4933627da339b54ca2ef4

SHA-1:
7ec40ec841e450a02a16cc7c23967fdfa1c21a04

SHA-256:
324731716430aa51607ff68bd628bb4bc4c912c847b493545932a0537063b2cc

Scanner detections:
17 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
11/5/2024 3:37:05 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
Downloader/Win32.Agent
2013.10.21

avast!
Win32:InstalleRex-M [PUP]
2014.9-140113

Baidu Antivirus
Trojan.Win32.Dropper
4.0.3.14113

Dr.Web
Adware.Downware.851
9.0.1.013

ESET NOD32
Win32/InstalleRex
8.8943

IKARUS anti.virus
Backdoor.Win32.Clack
t3scan.2.0.127

K7 AntiVirus
Riskware
13.173.9916

Kaspersky
Trojan-Dropper.Win32.Agent
14.0.0.4472

McAfee
RDN/Generic PUP.x!bu
5600.7251

MicroWorld eScan
Win32/InstalleRex.H.Gen
15.0.0.39

NANO AntiVirus
Trojan.Win32.Clack.burerr
0.26.0.55532

Rising Antivirus
Trojan.Win32.Generic.141ABB4F
23.00.65.14111

Sophos
Mal/Generic-S
4.93

Vba32 AntiVirus
Downware.TSU
3.12.24.3

VIPRE Antivirus
Trojan.Win32.Generic
22590

ViRobot
Backdoor.Win32.A.Clack.306176
2011.4.7.4223

XVirus List
Win.Detected
2.3.31

File size:
299 KB (306,176 bytes)

Product version:
1.0

Copyright:
Copyright © 2012 BetterSoft

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
Tarma Installer

Language:
Language Neutral

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

File PE Metadata
Compilation timestamp:
1/16/2013 11:57:29 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:mrgGx30T7P2iVX39Wod0EU1W40ByVFMvKcmjaeLq2JyqPWiusvIcL8WQt:mrgGxETjJBtWo17lB1ycqVq2JNusgcL

Entry address:
0x14DB

Entry point:
55, 8B, EC, 81, EC, 2C, 06, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, DC, FB, FF, FF, 89, 5D, F4, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 70, 30, 40, 00, 8B, F8, 8D, 45, EC, 50, FF, 15, 6C, 30, 40, 00, FF, 15, 68, 30, 40, 00, 8B, F0, F7, D6, 33, F7, FF, 15, 64, 30, 40, 00, 33, F0, 8B, 45, F0, 33, 45, EC, 68, 04, 01, 00, 00, 33, F0, 8D, 85, D4, F9, FF, FF, 50, 53, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, A8, 32, 40, 00, E8, 43, FB, FF, FF...
 
[+]

Entropy:
7.9618

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file agent_setup.exe has been seen being distributed by the following 2 URLs.

http://i1.installbox2.info/.../agent_setup.exe

http://i1.installbox1.info/.../agent_setup.exe

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