zlib.dll
zlib by Cerberus (Signed)
Warning 7 antivirus scanners has detected malware in various versions of zlib.dll.
Overview
zlib.dll has 7 known versions, the most recent one is 1.2.7. The average file size is about 124.54 KB. It is an authenticode code-signed executable issued to Cerberus by the certification authority VeriSign. The programs Outpost Firewall Pro 8.0, Outpost Firewall Pro 9.1 and Cerberus FTP Server have been observed as installing specific variations of zlib.dll. This is a .NET Common Language Runtime (CLR) assembly.
What is zlib.dll?
zlib is a common software library used for data compression. zlib compressed data is typically written with a gzip or a zlib wrapper. zlib is something of a de facto standard, to the point that zlib and DEFLATE are often used interchangeably in standards documents, with thousands of applications relying on it for compression, either directly or indirectly.
 Details
|
| File name: | zlib.dll |
| Product name: | zlib |
| Description: | zlib data compression library |
| Typical file path: | C:\Program Files\cerberus llc\cerberus ftp server\zlib.dll |
| Original name: | zlib1.dll |
| Certificate |
| Issued to: | Cerberus |
| Authority (CA): | VeriSign |
| Effective date: | Monday, August 2, 2010 |
| Expiration date: | Friday, September 2, 2011 |
Programs installed in
(Note, the programs listed below are for all versions of zlib.)
“Two-way firewall for secure network connections. Proactive Protection module to block unknown and zero-day threats. SmartDecision technology for fast decision-making in security issues. Web control wi...”
“The Download App is a free application from Download.com that helps update the software on your Windows computer. The Download App will scan your computer and notify you when updates are available for...”
Cerberus FTP Server is a Windows-based FTP server with support for encrypted FTP sessions via FTPS and SFTP as well as web client support via HTTP and HTTPS. The server exposes files using a virtual f...
This is a rouge anti-adware program from AdwareAlert.com Inc. made to look like it will scan for and remove adware from user's PC.
Malware detections
Based on 40+ industry antivirus scanners, 7 of them detected the following malware.
| Antivirus engine | Engine version | Detection | File version |
| CAT Quick Heal |
7.13.11.00 |
Trojan.Agent.IRC |
1.2.3 |
| Commtouch |
5.4.1.7 |
W32/FakeAV2008.XXQL-4470 |
1.2.3 |
| Comodo Internet Security |
9385 |
UnclassifiedMalware |
1.2.3 |
| F-Prot |
v6.4.7.1.166 |
W32/FakeAV2008.D |
1.2.3 |
| Jiangmin |
13.0.900 |
HackTool/AntiSpywareBot.b |
1.2.3 |
| K7 AntiVirus |
9.108.4907 |
Adware |
1.2.3 |
| Symantec |
20111.1.0.186 |
WS.Reputation.1 |
1.2.3 |
All file variations of zlib.dll
Distribution by Windows OS
| OS version | distribution |
| Windows 7 Ultimate |
28.57% |
|
| Windows 7 Home Premium |
14.29% |
|
| Microsoft Windows XP |
14.29% |
|
| Windows 8 |
14.29% |
|
| Windows 7 Professional |
14.29% |
|
| Windows Vista Home Premium |
14.29% |
|
Distribution by country
United States installs about 57.14% of zlib.
Distribution by PC manufacturer
| PC Manufacturer | distribution |
| Hewlett-Packard |
25.00% |
|
| Toshiba |
25.00% |
|
| Gateway |
25.00% |
|
| Acer |
12.50% |
|
| American Megatrends |
12.50% |
|
