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systweak_installer.exe

The application systweak_installer.exe has been detected as a potentially unwanted program by 14 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The installer uses the InstallMonetizer platform which will donwload and install adware toolbars and other potentially unwanted software offers during setup. The file has been seen being downloaded from d1t653m828c3x8.cloudfront.net.
MD5:
9ed8bbc2ce693db8db8e314422e839bb

SHA-1:
9aefabe4d28950087a99cdf3eae0bce6563b37f1

SHA-256:
b98e8e005a41586559e242be41608ae608183d61fc3c2341a783bbe8ff9cf5e8

Scanner detections:
14 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallMonetizer distribution platform to bundle adware.

Analysis date:
11/27/2024 2:39:11 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
NSIS:InstMonetizer-AP [PUP]
2014.9-140702

Baidu Antivirus
HackTool.Win32.Downloader
4.0.3.1472

Dr.Web
Adware.Downware.1663
9.0.1.0183

ESET NOD32
Win32/InstallMonetizer.AG
8.9560

K7 AntiVirus
Trojan
13.176.11482

Kaspersky
not-a-virus:Downloader.NSIS.Agent
14.0.0.3622

McAfee
RDN/Spybot.bfr!j
5600.7081

Norman
Suspicious_Gen4.FRDKZ
11.20140702

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14630

Sophos
Generic PUA JK
4.98

SUPERAntiSpyware
Trojan.Agent/Gen-Downloader
10508

Trend Micro House Call
TROJ_GEN.R02SH06CH14
7.2.183

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.24.3

VIPRE Antivirus
InstallMonetizer
27528

File size:
164.6 KB (168,535 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}\systweak_installer.exe

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:EgXdZt9P6D3XJgzmnwpvLcg1yAvf+4DApkx3rOiHMgtzXHoL5MIW665A8Ww+NhDx:Ee34q08jy7pkZr5t5q2pd5A8Ww6Dx

Entry address:
0x30FA

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, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.8526

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://d1t653m828c3x8.cloudfront.net/bundles/.../SysTweak_Installer.exe

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