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avastantivirus7-setup.exe

WebInstall

The application avastantivirus7-setup.exe by WebInstall 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 NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from files4.open-serve.info.
Publisher:
WebInstall  (signed and verified)

MD5:
a2f339ebf4e71935c0d8c28b9b5b0818

SHA-1:
a0783b028458299682fe516b6aae1fc6b1cac94f

SHA-256:
ec19595483e06e0816139a54cbf4a12f49d32614f4bc59da74c64360e6370efa

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.

Analysis date:
4/18/2024 6:36:54 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebInstall.Installer (M)
16.2.6.12

File size:
562 KB (575,520 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\avastantivirus7-setup.exe

Digital Signature
Signed by:
WebInstall

Authority:
VeriSign, Inc.

Valid from:
4/15/2012 5:00:00 PM

Valid to:
4/16/2013 4:59:59 PM

Subject:
CN=WebInstall, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=WebInstall, 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:
7A2D6C74203EB866B7DC1BC33568BE48

File PE Metadata
Compilation timestamp:
6/22/2012 11:07:51 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:QzwwveXihrsW8RZE4PefDlpX1kQX9NawER6d3:QzPvJr0E4WfDrrNawld3

Entry address:
0x333B

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, 2C, 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, 1D, 24, 00, 00, FF, 15, BC, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 0B, 24, 00, 00...
 
[+]

Entropy:
7.9468

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file avastantivirus7-setup.exe has been seen being distributed by the following URL.

http://files4.open-serve.info/download?s=Google&c=downloads.yahoo.com_avast&brand=downloads.yahoo.com&pid=yahoo&bc=267436&country=US&cb=271951249

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