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blockandsurf_2222-2120.exe

The application blockandsurf_2222-2120.exe 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, however the file is not signed with an authenticode signature from a trusted source. This is part of the Revizer line of web browser extensions that inject 3rd-party advertisements in the user's web browser as well as setup a proxy server for the browser in order to track behaviors and display context based-ads from various partners (mostly adware).
Description:
For Windows

Version:
1.183.0.0

MD5:
663fd2df593eedaf706fe5bbfd6d134f

SHA-1:
2af945512de87be164e58226656090b1af20843e

SHA-256:
ebebeb9243369170bccbcd17b9adc0a58e3f6c0eab86c8c943dfea7975007232

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:
4/28/2024 11:57:18 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Revizer.Installer (M)
15.11.23.8

File size:
1 MB (1,067,263 bytes)

Copyright:
Copyright (c) 2014

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\blockandsurf_2222-2120.exe

File PE Metadata
Compilation timestamp:
6/6/2009 5:41:54 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:4h9xrR4L5Zd3AahDoqzeAeuX6L2px8TCVK:e9x+Ff3AcKA4cop

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.9914

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file blockandsurf_2222-2120.exe has been seen being distributed by the following URL.

http://atn.frmclstr.com/apps/.../BlockAndSurf_2222-2120.exe

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