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system_firefoxupdateweb.exe

Blueis

This is the Tightrope WebInstall which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application system_firefoxupdateweb.exe by Blueis has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the Tightrope WebInstall installer. The installer is marketed through download protals and search ads as the free Mozilla Firefox web browser but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Blueis  (signed and verified)

MD5:
0b97d96899d60f9c84078e4c439a491c

SHA-1:
f25c9346cda9fea1d529654cb8deb8ec601055a4

SHA-256:
4ae3cf3a12dbbe29dfc204bcdf17b2bed149a3c73d1bb7d738dba647ef0cf827

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
5/1/2024 4:11:16 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Tightrope.Blueis.Bundler (M)
16.2.8.8

File size:
823.4 KB (843,128 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Tightrope WebInstall (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\ProgramData\optimizer\program\system_firefoxupdateweb.exe

Digital Signature
Signed by:
Blueis

Authority:
VeriSign, Inc.

Valid from:
11/7/2014 4:00:00 AM

Valid to:
11/8/2015 3:59:59 AM

Subject:
CN=Blueis, O=Blueis, L=SAN FRANCISCO, 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:
58AC2B1B2E1E80F003ECEE0F41F4124A

File PE Metadata
Compilation timestamp:
7/15/2014 8:29:31 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:zxpJfslZtuaVd9lpmhwQbift489IVGD4xJFl6Xqb5Kbmkg8Sw:Np9sVuaVdvgVbmgGDijyikg5w

Entry address:
0x3345

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, B0, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, C0, 70, 40, 00, 53, FF, 15, 88, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, 2E, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 43, 74, 40, 00, FF, 15, 64, 71, 40, 00, 68, 38, 74, 40, 00, 68, C0, 33, 42, 00, E8, 1F, 24, 00, 00, FF, 15, BC, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 0D, 24, 00, 00...
 
[+]

Entropy:
7.4909

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file system_firefoxupdateweb.exe has been seen being distributed by the following 3 URLs.

http://files4.securemirror1.com/download/.../dl?bc=1086440&pid=topvideosoft&brand=topvideosoft.com&s=new_source1&c=topdmsg&country=RO&cb=580918102&filename=firefox-update.exe&productKey=uzxlh25ouoiupflchwd5pdzafjsoog5l&osName=Windows&osVersion=7&browserName=IE&browserVersion=7&zTmp=1

http://files4.fastdownload3.com/download/.../dl?bc=1086440&pid=topvideosoft&brand=topvideosoft.com&s=new_source1&c=topdmsg&country=ID&cb=75979945&filename=firefox-update.exe&productKey=uzxlh25ouoiupflchwd5pdzafjsoog5l&osName=Windows&osVersion=7&browserName=IE&browserVersion=7&zTmp=1

http://files4.securemirror1.com/download/.../dl?bc=1086440&pid=topvideosoft&brand=topvideosoft.com&s=new_source1&c=topdmsg&country=CA&cb=-106220386&filename=firefox-update.exe&productKey=uzxlh25ouoiupflchwd5pdzafjsoog5l&osName=Windows&osVersion=7&browserName=IE&browserVersion=7&zTmp=1

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