How to Remove ZLIB1.DLL | ZLIB1.DLL Malware

What is ZLIB1.DLL?

The file named ZLIB1.DLL is developed by Zlib. The file is secured and signed by NCH Software. The file is used by the software program Zlib which is used in compression and depression of library files. There are security updates being rolled out at regular intervals. The threat level of the file is 1.

ZLIB1.DLL is located in C:\ProgramData\nch software\boltpdf\driver64\zlib1.dll. The total size of the DLL file is 74.9 kilobytes. The latest version of the file found in the records is 1.2.1.1429. The program is a non-system process and if infected by a malware or virus, the file can be uninstalled without affecting the performance of the windows operating system.

Affected Platforms: Windows 7, 8, 10

How to determine if your computer is infected with ZLIB1.DLL malware?

Look out for these symptoms to check if your PC is infected with ZLIB1.DLL malware:

Unstable internet connection
ZLIB1.DLL occupies extra CPU space
PC processing speed slows down
Browser often redirects to irrelevant websites
Browser is bombarded with hordes of popup ads
Computer screen freezes repeatedly

Take the following steps to diagnose your PC for possible ZLIB1.DLL malware attack:

Step 1: Simultaneously press CTRL+ALT+DEL keys to open Task Manager.

Step 2: If you notice the file located outside C:\ProgramData\nch software\boltpdf\driver64\zlib1.dll, perform an antivirus scan to get rid of the malware.

How to remove ZLIB1.DLL malware from system using Comodo Antivirus?

Step 1: Download our award-winning Antivirus.

Step 2: Installation configuration frames will be displayed. Select the configuration you would like to apply.

Step 3: Select Customize Configuration option and arrange installers, configuration, and file location.

Step 4: Restart your PC after the installation gets over

Step 5: Wait for Comodo Internet Security to update the antivirus.

Step 6: Proceed with the quick scan that automatically begins after the update.

Step 7: If threats are found during the scanning, you will be notified through an alert screen.

Step 8: Comodo Antivirus will remove ZLIB1.DLL malware from your computer including all other malwares!

Malware Entries

Safe Entries

No.	Company	File Type	SHA1	MD5	Malware Name	Digitally Signed	File Version	Product Version	Submitted From	Malware Behavior

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Safe Entries

First Seen: 22 July 2008 at 3:54 pm

No.	Company	File Type	SHA1	MD5	Digitally Signed	File Version	Product Version	Submitted From
1	N/A	Executable	74eafd9ff753e694 0b3b48b69e2f2f6c f1cdd7c3	e8b2ad5c8aee8902 7803bc8ee0ca220e	No	1.2.13	1.2.13	United States
2	N/A	Executable	3230facd2c53af9f 50ed146a44cb724e 7c830a2b	f8d98178a1b00d6c 5bc6d4554787b949	Yes	1.2.13	1.2.13	United States
3	NULL	Executable	c54ed841738ec24f 615355e41c79ef5c d2c9fd1d	0ce91b17cbaf3a26 8eff29af17f31525	No	1.2.12	1.2.12	United States
4	N/A	Executable	a23a654976317f63 b57752b5c49615da 38e60cd9	bfd1db5a2f1d3afe 251c238ca8e845b9	Yes	N/A	N/A	United States
5	N/A	Executable	171e93e93f97fb11 5edb8d5f0122cc6f fe64d50c	57d4c3dc523a20a3 19b8334268595677	No	1.3.1	1.3.1	United States
6	NULL	Executable	e9c69fb1a4a28ca5 aaa219e056cf62ab 8ab45043	715caee2086f0f2a 2ba14a91b6235c0c	Yes	1.3.1	1.3.1	United States
7	N/A	Executable	c9fc156d81279fe2 1856831c1b26995e abf98455	536a97c4b153f66e f1d513b5a772199b	Yes	2.2.11	1.2.11	United States
8	NULL	Executable	3901e7aed5654a64 66b293c5fddb0e16 216375f2	80ff72995dc5f518 4cbd11df277051a1	No	1.2.3	1.2.3	United States
9	NULL	Executable	6d957ba632df5b06 d49a901f2772df43 01610a2a	80e41408f6d641dc 1c0f5353a0cc8125	No	1.2.3	1.2.3	United States
10	NULL	Executable	4fde16ea0f23507b 108619af0053f00a 7ea719c8	bf13b7de91ae5414 838abf1445ed9793	No	1.3	1.3	United States
11	NULL	Executable	8db58be2e514ac6e 0c926bf32d397bbf d85a6506	c1153514d7c284b9 07c67bc19dd242b9	Yes	1.2.12	1.2.12	United States
12	N/A	Executable	078dd757bd7e55c7 8fd4ea9622e3e7a3 5970911c	b2355267e526fefd 34c39957a9207b6f	Yes	1.3.1	1.3.1	United States
13	N/A	Executable	22ed3c489858c7ca 2873717ecfe2b50a f8dba260	3a36bde702dfa969 f43e3b6d0e4eb36c	No	1.2.13	1.2.13	United States
14	NULL	Executable	7acb4b6227520f9a 7de445e896177133 ff6e48ca	b74c8ea358f55b03 c27264cdac12e964	No	1.2.8	1.2.8	United States
15	NULL	Executable	59ae9d91a774b2f2 890811467b783ebf 27997ed9	b0a196adb8d36f26 22ceae5e891c7daa	No	1.3.1	1.3.1	United States
16	N/A	Executable	bb68ca3b10f3949f 093a65c7278da631 9e76aa5d	ee01439a96e6c269 c5d3d42c46c4516e	No	N/A	N/A	United States
17	NULL	Executable	d0d9b9596448aa4b 0b34f877328320fe 7f5e916e	e1b725007552076d 5dab38f6012299c4	Yes	1.3.1	1.3.1	United States
18	N/A	Executable	e215fba8b16f98b2 0bf2dc453a7ace8f af8ed14d	bf09dd8d77d093ca 93708ee4260c2547	Yes	1.2.11	1.2.11	United States
19	N/A	Executable	fd7b1b01dc01a7f3 2bd51f9a31bf717f 4d55d09c	eb3af30a0981219d 851e6506db106bc2	Yes	1.3.1	1.3.1	United States
20	NULL	Executable	13e2b6dfe05e5f6e e56536ece6702429 58e35245	11933bb6e784f132 3af58bc21211b137	No	1.3.1	1.3.1	United States
21	N/A	Executable	b230040270343310 9cee85fd9f70e81b f867c319	e4d7dd0a413519b2 1621ccb7d1d78fa4	No	1.2.8	1.2.8	United States
22	N/A	Executable	17cea34f251fa3c0 fcb896872b3a065b 735401c7	bb4324b060336278 e1bc06f7c5142e3f	No	1.3.1	1.3.1	United States
23	N/A	Executable	0fb94c99c2b28084 33ce520ddded09fe 9a4e8880	8936964270ba5589 8cdd38c7b91ff5e2	No	1.3.1	1.3.1	United States
24	N/A	Executable	2c3062d7975e4e18 7690b1dc262585d8 ddbd3212	8b4c448d0c4764b6 3003cc1d63603eb5	No	1.3.1	1.3.1	United States
25	NULL	Executable	3780079ab00b6d5c 316d95a1c557486c f604407e	ad2eefc316b62b62 98769c7e1719994a	No	1.2.11	1.2.11	United States
26	NULL	Executable	19ff8f9edeb3eaf4 9f0cdd72ff3803ad b2936694	cec64b613eef7ef6 6592d44968123436	No	1.2.13	NULL	United States
27	N/A	Executable	447043de6e77d754 31b5d71d9412ee73 e1ee7f85	ac798204ed435c1e 50eb8ade13015aef	Yes	1.2.12	1.2.12	United States
28	NULL	Executable	90f59b2e8d2d1fac 6f523d73fd497c06 07ad2076	2733339c9eb124ca ba0acf7e01db9375	No	1.2.8	1.2.8	United States
29	N/A	Executable	db293bec35f05fe4 a17914be747b434f 6f358552	85bf5d18b73215e9 5ac28cd70d53a6dd	Yes	N/A	N/A	United States
30	NULL	Executable	3d25905afa89b02f b8a33ca1d0c77b38 e4799973	c6f192fb3e7c0794 7b9bb8e80c1e7e9d	No	1.2.11	1.2.11	United States
31	N/A	Executable	645603f4f408e9a0 712bfb06b2fd42a5 c673907e	97a132e05ee0cdcb 146f4f926472d2c8	No	1.3.1	1.3.1	United States
32	NULL	Executable	1523ae71ca322671 022b297e19c8acab e9f2105d	3ecfe1baeab59176 9664567c4e653e6f	No	1.2.1	1.2.1	United States
33	N/A	Executable	02af48bfc84c7196 626a5aedba7e2bf6 48e496a9	23791c12dd8d04fd 2467ec0fd2d3d9a8	Yes	1.3.1	1.3.1	United States
34	N/A	Executable	ecfa5eba823997a2 1da7e22343cfe780 c0b52446	3e4d7224bbadcb9e b4849d18d83d29c4	Yes	1.2.12	1.2.12	United States
35	NULL	Executable	3cbcee30fc0a7e98 07931bc0dafceb62 7042bfc9	b8a9e91134e7c894 40a0f95470d5e47b	No	1.2.8	1.2.8	United States
36	N/A	Executable	9c72ea7aef84854c b27e297c38192626 be480b0b	bbf2cec64f0b79a5 c28b32b0791b1634	Yes	1.3.1	1.3.1	United States
37	N/A	Executable	7887e35709b01b48 9269b5ca123d198c 012f8fa6	4d802db6ab2f497b 2ce6b2f836543fe2	Yes	1.3.1	1.3.1	United States
38	NULL	Executable	41ed7d4211c55029 55f1b54ff3c31e78 5c3ee68b	be069aca50ddfd40 43aada13edfc7438	No	1.2.11	1.2.11	United States
39	N/A	Executable	e366bfadddcb5cce 4ee503d96e080bff b5e96640	76ce4ccc2d2061a5 7ee7e1131e1c4391	No	1.3.1.zlib -ng	1.3.1.zlib -ng	United States
40	N/A	Executable	24ab858d12e88ff4 3f2159326a9a3529 f81d6c29	b4c16f58086ce2c8 4b0e9f3abb021dc2	Yes	1.3.1	1.3.1	United States
41	NULL	Executable	b112c267f5a6e3d0 6809896708d9ef9f 7c118462	de2e3379deeacbe4 76b9ee8ddeac7ffe	Yes	1.3.1	1.3.1	United States
42	N/A	Executable	21a0dac63080aec5 9c25614bd09b7ecd 5aefd287	599dc36bc1f84b73 ecaad2b492422d82	Yes	1.2.3	1.2.3	United States
43	N/A	Executable	8363b91f0e859d72 670f964c9a7e714e 4c3d0d3b	5c1b4b5951787bfc 3747e3cb6ad1338e	Yes	1.2.3	1.2.3	United States
44	NULL	Executable	c6ae92e5388843bc 0d92f06025a1b6fb 161c08e0	8b0076a497a565b7 3ab6c219c069ac50	No	1.3.1	1.3.1	United States
45	NULL	Executable	6d5c51ec14e8d2f8 fea1abffe1c13e93 eec33e12	e283d3351e9e987e c27fe7fa4bced7ed	No	1.2.11	1.2.11	United States
46	NULL	Executable	cbbce727fd844748 7c7fc68051b24df1 7d043649	d90dad5eea33a178 bac56fff2847d4c2	No	1.2.5	1.2.5	United States
47	N/A	Executable	63dfafa4508b0712 407793d57e2d0bf0 1ddcc919	8027e20a827dfcc3 0d625bfa14355cca	No	1.3.1	1.3.1	United States
48	N/A	Executable	ef394247dde405bc 5fc15572dc86b02c 5c106741	72181b8722980f45 aaa663899dafd974	No	1.2.3	1.2.3	United States
49	N/A	Executable	ce9e79676b7c783c 8254085bb3e27d7f 740bf025	6ce23555e72f297d ccf31c256af44924	Yes	1.2.3	1.2.3	United States
50	N/A	Executable	3306c6aca3937d8b ca11dd076effb037 46367b9f	66a3477a51e8b7d4 586edf4659cde8d5	No	N/A	N/A	United States

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How to Remove “ZLIB1.DLL”

What is ZLIB1.DLL?

How to determine if your computer is infected with ZLIB1.DLL malware?