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: 16 September 2008 at 1:37 pm

No.	Company	File Type	SHA1	MD5	Digitally Signed	File Version	Product Version	Submitted From
1	N/A	Executable	211fd5859e31d49e 93c616c801245f9d 335e464a	3883b1e3fbad9316 96622c397d524ab6	Yes	1.3.1	1.3.1	United States
2	N/A	Executable	331b61df1d537880 9df58cbcfa292002 d4adb06b	30a31b969a3356ef de11078dc635baa0	No	N/A	N/A	United States
3	N/A	Executable	c70ed50b463b021e bc016756f322ddc0 1b7c1dc3	a1858085bdd817e3 d62cee939c08eae0	Yes	1.2.3	1.2.3	United States
4	N/A	Executable	0a31f59d2482582f b320d22220267d65 1bf65f48	8e6dfcbbd7581a3c 27bf44b487d0fde2	No	1.3.2	1.3.2	104.238.128.144/32
5	N/A	Executable	492f77c134bfc094 bfd1beb3b59d8b4b 049c1e04	7d9cf807b5c49aca efa18734a05edb22	Yes	1.3.1	1.3.1	United States
6	N/A	Executable	dd98b538f022bee2 159150c3a31852da b3d386ad	b550826baaaa97ad 38c2a7ab670a93bb	Yes	1.3.2	1.3.2	United States
7	N/A	Executable	c798e535319df122 8e31dfe837199eba 8040f293	566426d98005e764 959d568332c6ef5f	Yes	N/A	N/A	United States
8	N/A	Executable	367f3297e2018a5e f9d7abf13997454c 0ba51a8b	a59cbbe90d948f3e 929d72d0ff921126	No	N/A	N/A	United States
9	NULL	Executable	efd870a6f9afac3d e123ca452bb695a4 6b6105fa	98874bc7141aebc6 13ec9e1218a9326a	No	1.2.11	1.2.11	United States
10	NULL	Executable	13e2b6dfe05e5f6e e56536ece6702429 58e35245	11933bb6e784f132 3af58bc21211b137	No	1.3.1	1.3.1	104.238.128.144/32
11	N/A	Executable	67ff8c1722e7cddf f8932515a6fd46a0 4353ed07	da3777b7c979a828 eb476656ef4b3a6e	No	1.3.1.zlib -ng	1.3.1.zlib -ng	104.238.128.144/32
12	N/A	Executable	1681d1851899de7e 2bdfe6320230092f 34d70cdd	617c460c111c45b5 31331c579dbf1c6b	No	1.3.2	1.3.2	United States
13	NULL	Executable	087932b4a788a5de a5e2e4947607a641 6037ac18	489afb9044adf204 559566019a7098a3	No	1.2.13	1.2.13	104.238.128.144/32
14	NULL	Executable	ca08424b3d34405e 69d318c4d733129e 6eac1fef	06da5cee5fe44178 29e7f27daf499338	No	1.2.7	1.2.7	United States
15	NULL	Executable	4fde16ea0f23507b 108619af0053f00a 7ea719c8	bf13b7de91ae5414 838abf1445ed9793	No	1.3	1.3	104.238.128.144/32
16	N/A	Executable	6a5571816ab31271 c382dcd8834bc9bf 8fbcd662	fefec5c0dc19505e 8f62a204c16d43ad	No	1.3.2	1.3.2	United States
17	N/A	Executable	c03bf48373fff632 436c353edf7a861e 25904613	cda42b7922afa45c 26968930f9b53e09	Yes	1.3.1	1.3.1	104.238.128.144/32
18	NULL	Executable	6d957ba632df5b06 d49a901f2772df43 01610a2a	80e41408f6d641dc 1c0f5353a0cc8125	No	1.2.3	1.2.3	United States
19	N/A	Executable	69493c9cbda8c22d 00b4c27aae9434a9 b5b792f4	7e0345678c1cb396 b0ed80f131cc43f6	Yes	1.3.1	1.3.1	104.238.128.144/32
20	N/A	Executable	1681d1851899de7e 2bdfe6320230092f 34d70cdd	617c460c111c45b5 31331c579dbf1c6b	No	1.3.2	1.3.2	104.238.128.144/32
21	N/A	Executable	67ff8c1722e7cddf f8932515a6fd46a0 4353ed07	da3777b7c979a828 eb476656ef4b3a6e	No	1.3.1.zlib -ng	1.3.1.zlib -ng	United States
22	NULL	Executable	4fde16ea0f23507b 108619af0053f00a 7ea719c8	bf13b7de91ae5414 838abf1445ed9793	No	1.3	1.3	United States
23	N/A	Executable	381519b78ae0d40d e3ac009dd54f5b5a bf7537cd	dcb0a073f034344e 930373443daf4685	No	N/A	N/A	104.238.128.144/32
24	NULL	Executable	599c7fb91803f078 2bb0d93092c775eb 9595fc57	71cbb59bc788dbe3 c60f0f299f0e7120	Yes	1.2.11	1.2.11	United States
25	NULL	Executable	6362f1a8c749b934 cfad24d01c403f68 a7f873e3	87ae4cd46ccdd873 bb7b902abd79b738	No	1.2.13	1.2.13	104.238.128.144/32
26	NULL	Executable	75fbf1fe1c5eb014 2e90e6ca9b9cc95f 27d91ffa	d3796b726ca1c782 9679958b4480096c	No	1.2.8	1.2.8	United States
27	N/A	Executable	c70ed50b463b021e bc016756f322ddc0 1b7c1dc3	a1858085bdd817e3 d62cee939c08eae0	Yes	1.2.3	1.2.3	104.238.128.144/32
28	NULL	Executable	15cd01170ff8d853 1fb16f4f7a1c5fbe 810a1057	72e87ad407bb28f5 b471c3396296b377	No	1.2.5	1.2.5	United States
29	N/A	Executable	8d767b3d470af766 a6c2a2c606566b7f 96872012	fc6d4c59c54e683f 759cd924dac9df3c	Yes	1.3.1	1.3.1	104.238.128.144/32
30	N/A	Executable	0a31f59d2482582f b320d22220267d65 1bf65f48	8e6dfcbbd7581a3c 27bf44b487d0fde2	No	1.3.2	1.3.2	United States
31	NULL	Executable	af25616f39916c4a 5247ea59604bea25 7e5d2138	44a5221df0961b9a 425127623d3e8213	No	1.2.8	1.2.8	United States
32	N/A	Executable	367f3297e2018a5e f9d7abf13997454c 0ba51a8b	a59cbbe90d948f3e 929d72d0ff921126	No	N/A	N/A	104.238.128.144/32
33	N/A	Executable	eb8213d09848404e efc82ba0b4c3082b 1c8aa8aa	a340d1a0a301e534 32715226a0142a82	Yes	1.2.2	1.2.2	United States
34	NULL	Executable	a0853f3c26a316ca b86740f92e51bc93 77add007	f7386f2a3bcb12b4 de3de9a2a3d91d03	No	1.2.13	1.2.13	United States
35	NULL	Executable	f8e8e68c0bb0c50f 3559a28b272fbadc 7500dfe7	fdf28da2acb98553 9c24438a3e9576a8	No	1.2.12	1.2.12	United States
36	NULL	Executable	13e2b6dfe05e5f6e e56536ece6702429 58e35245	11933bb6e784f132 3af58bc21211b137	No	1.3.1	1.3.1	United States
37	N/A	Executable	b3b6fba58abce99e df4c17ce14e5d1d7 fc180eb3	bc1a7bd2b3228a34 0636d5769bda324e	No	N/A	N/A	104.238.128.144/32
38	NULL	Executable	cbbce727fd844748 7c7fc68051b24df1 7d043649	d90dad5eea33a178 bac56fff2847d4c2	No	1.2.5	1.2.5	104.238.128.144/32
39	N/A	Executable	e4b93516da456586 827ad0b76711ec97 3f4eb210	367df9dccebb7b44 eb033b9675e9340b	Yes	N/A	N/A	104.238.128.144/32
40	NULL	Executable	19ff8f9edeb3eaf4 9f0cdd72ff3803ad b2936694	cec64b613eef7ef6 6592d44968123436	No	1.2.13	NULL	United States
41	N/A	Executable	6abfd0a0aba4765d cd5ca8bedd58cd01 03aee6a2	350be54b830723b6 ac96d31d13d9ae8f	Yes	N/A	N/A	104.238.128.144/32
42	N/A	Executable	96f1a9638d622b51 ffa5a7cb33fc293d 2266baf9	d193085e6cea9cf3 d77ef5fb9941a1eb	No	1.3	1.3	United States
43	N/A	Executable	fcaf4815072de007 c802fe04621de401 a6b7f6f1	926aba5a36b310b4 2d6aa23e7673e50d	Yes	1.2.3	1.2.3	United States
44	NULL	Executable	808624f9653b3e05 de173806546cf903 c610348d	53ae92316dc22506 5dc4fce29b1b26ba	No	1.2.11	1.2.11	104.238.128.144/32
45	N/A	Executable	22e6020f42d156f6 7315c1c67570c265 9d40474d	e94c31a1b1db3c29 2af593402ce48217	No	1.3.2	1.3.2	United States
46	N/A	Executable	7887e35709b01b48 9269b5ca123d198c 012f8fa6	4d802db6ab2f497b 2ce6b2f836543fe2	Yes	1.3.1	1.3.1	104.238.128.144/32
47	N/A	Executable	a505450954c6c051 4fe733e589bc7997 fe8c0d47	e5bd5371685716b6 811316b8ec31aea1	No	1.3	1.3	United States
48	NULL	Executable	3c65714a9cea89fe a1fa0cb83d50af84 be890f71	252ebe65b7908cc6 65fc4463018b022f	No	1.2.5	1.2.5	104.238.128.144/32
49	NULL	Executable	808624f9653b3e05 de173806546cf903 c610348d	53ae92316dc22506 5dc4fce29b1b26ba	No	1.2.11	1.2.11	United States
50	NULL	Executable	3cbcee30fc0a7e98 07931bc0dafceb62 7042bfc9	b8a9e91134e7c894 40a0f95470d5e47b	No	1.2.8	1.2.8	United States
51	N/A	Executable	206c21d78a24a8df 7267e5544affdb10 0543ed0d	dcb183ac4d99cc6d 445c97da9a41e361	Yes	1.2.8	1.2.8	United States
52	N/A	Executable	a505450954c6c051 4fe733e589bc7997 fe8c0d47	e5bd5371685716b6 811316b8ec31aea1	No	1.3	1.3	104.238.128.144/32
53	N/A	Executable	ceb443c4ef5b82ee b1e84ac44d503ec4 f2046271	45f79c74f0158759 3dbbcf08e581bfc0	No	N/A	N/A	United States
54	NULL	Executable	30efa16c29bcad10 277f69fe7bba990d 6ac678e0	279c4dd571f20c31 881d6327ce0228bf	No	1.2.8	1.2.8	104.238.128.144/32
55	N/A	Executable	b3b6fba58abce99e df4c17ce14e5d1d7 fc180eb3	bc1a7bd2b3228a34 0636d5769bda324e	No	N/A	N/A	United States
56	NULL	Executable	cbbce727fd844748 7c7fc68051b24df1 7d043649	d90dad5eea33a178 bac56fff2847d4c2	No	1.2.5	1.2.5	United States
57	N/A	Executable	0e2564141967037e 1988372c54ccb7d9 55429cf9	96a795073e5e1f84 824c9e689173bf80	Yes	1.3.1	1.3.1	United States
58	N/A	Executable	96f1a9638d622b51 ffa5a7cb33fc293d 2266baf9	d193085e6cea9cf3 d77ef5fb9941a1eb	No	1.3	1.3	104.238.128.144/32
59	N/A	Executable	fcaf4815072de007 c802fe04621de401 a6b7f6f1	926aba5a36b310b4 2d6aa23e7673e50d	Yes	1.2.3	1.2.3	104.238.128.144/32

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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?