avg-downgrader.exe

Setup process

Firseria

The setup program uses the Firseria/Solimba AppInstaller (DownloadMR) which is a monetization download manager that bundles additional adware offers, typically by wrapping legitimate applications. The application avg-downgrader.exe, “Downloader Process” by Firseria 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 Solimba DownloadMR installer. The installer uses the Solimba download manager to push adware offers during the download and setup process. Bundled adware includes search and shopping web browser toolbars.
Publisher:
Downloader corporation  (signed by Firseria)

Product:
Setup process

Description:
Downloader Process

Version:
3.1.13.27

MD5:
0edd4d28d9bfbcbc3e6a5dfe0dc616e8

SHA-1:
9a5bb198d040e4ec10bd682bc85a4d6404241df3

SHA-256:
cb5604e4b16b9bc7dc86de2532d88006619749dfce74e28fdf15679772395e9e

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the Solimba installer to bundle adware offers.

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:
10/25/2021 12:58:39 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Solimba (M)
17.3.15.13

File size:
411.7 KB (421,608 bytes)

Product version:
3.1.19

Copyright:
Setup Downloader © 2014

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\avg-downgrader.exe

Digital Signature
Signed by:

Authority:
GlobalSign nv-sa

Valid from:
11/11/2013 1:34:44 PM

Valid to:
11/12/2014 1:34:44 PM

Subject:
E=support@solimba.com, CN=Firseria, O=Firseria, L=Badalona, S=Barcelona, C=ES

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112130C3B28D7C9C29B8B07321EF3F8A1462

File PE Metadata
Compilation timestamp:
7/8/2014 12:27:46 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x840A4

Entry point:
60, E8, 00, 00, 00, 00, 58, 05, 5A, 0B, 00, 00, 8B, 30, 03, F0, 2B, C0, 8B, FE, 66, AD, C1, E0, 0C, 8B, C8, 50, AD, 2B, C8, 03, F1, 8B, C8, 57, 51, 49, 8A, 44, 39, 06, 88, 04, 31, 75, F6, 2B, C0, AC, 8B, C8, 80, E1, F0, 24, 0F, C1, E1, 0C, 8A, E8, AC, 0B, C8, 51, 02, CD, BD, 00, FD, FF, FF, D3, E5, 59, 58, 8B, DC, 8D, A4, 6C, 90, F1, FF, FF, 51, 2B, C9, 51, 51, 8B, CC, 51, 66, 8B, 17, C1, E2, 0C, 52, 57, 83, C1, 04, 51, 50, 83, C1, 04, 56, 51, E8, 5E, 00, 00, 00, 8B, E3, 5E, 5A, 2B, C0, 89, 04, 32, B4, 10...
 
[+]

Packer / compiler:
ASPack v1.08.04

Code size:
121 KB (123,904 bytes)

The file avg-downgrader.exe has been seen being distributed by the following URL.

http://dl.downloadaesaenineipi.com/n/3.1.13.27/.../avg-downgrader.exe

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