HackTool:Win64/Mimikatz.A

Written by Robert Bailey
If you spectate the notification of HackTool:Win64/Mimikatz.A detection, it looks like that your computer has a problem. All viruses are dangerous, with no exceptions. Mimikatz unwanted app can not be called full-fledged malware.

Mimikatz is an infamous hacktool that is capable of hacking Windows credentials handling mechanism. Such an ability is invaluable for hackers, especially ones that try to escalate privileges. That is the key reason why anti-malware programs detect it: there’s always a chance that the instance of Mimikatz will have malicious origins.

Any malware exists with the only target – gain money on you. And the programmers of these things are not thinking about morality – they use all possible methods. Grabbing your private data, receiving the payments for the ads you watch for them, exploiting your PC to mine cryptocurrencies – that is not the full list of what they do. Do you like to be a riding horse? That is a rhetorical question.

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What does the notification with HackTool:Win64/Mimikatz.A detection mean?

The HackTool:Win64/Mimikatz.A detection you can see in the lower right side is demonstrated to you by Microsoft Defender. That anti-malware program is pretty good at scanning, however, prone to be generally unreliable. It is vulnerable to malware attacks, it has a glitchy user interface and problematic malware clearing features. Hence, the pop-up which states concerning the Mimikatz is just a notification that Defender has found it. To remove it, you will likely need to use a separate anti-malware program.

HackTool:Win64/Mimikatz.A found

Microsoft Defender: “HackTool:Win64/Mimikatz.A”

HackTool:Win64/Mimikatz.A unwanted program is a case in point of PUA, which are pretty widespread nowadays. Being free to use, it may give you “the extended functions” for the additional payment. Some instances of this program type can have no useful performance at all – just the shell with the bright interface. You can see it advertised as a system optimization tool, driver updater or torrent downloadings tracker. This or another way it does not provide you any real performance, exposing you to risk instead.

Unwanted Program Summary:

NameMimikatz PUA
DetectionHackTool:Win64/Mimikatz.A
DamageMimikatz is at least useless, or can perform various malicious actions on your PC.
Fix ToolSee If Your System Has Been Affected by Mimikatz exploit

File Info

Click to expand

File Info:

crc32: 27B6B2F0
md5: 4bdbb28df8dce933425de8edf0de5f75
name: upload_file
sha1: dabc061fc3bb57932acd20d7cbd8a8476d1ee489
sha256: 2395681d2d2b46d39db01f70a63001a54dc8231c6a8fd987f637847aa3f8aac2
sha512: 2a939375b356992af24724e0eec37fd7b9cb40bb8f738ebda28ca9fee700862826361a24b59f8404b3a2e751cd7d92a671c144d98164907d133d97fa208046d9
ssdeep: 12288:i5wslHkHCdnCBYwISUxUwaVnaNaLnostYPPzLvJ:i5wOEH6gYw/pa4LosovJ
type: RAR archive data, vb8,

Version Info:

0: [No Data]

Alternative detection names

Click to expand
GridinSoftTrojan.Ransom.Gen
FireEyeTrojan.GenericKDZ.69468
ALYacTrojan.GenericKDZ.69468
MalwarebytesRansom.HiddenTear
SangforMalware
K7AntiVirusTrojan ( 00564f471 )
K7GWTrojan ( 00564f471 )
Invinceaheuristic
TrendMicro-HouseCallTROJ_GEN.R06BC0WHG20
AvastWin32:MalwareX-gen [Trj]
KasperskyHEUR:Trojan.MSIL.Taskun.gen
BitDefenderTrojan.GenericKDZ.69468
AegisLabTrojan.MSIL.Taskun.4!c
RisingTrojan.GenKryptik!8.AA55 (CLOUD)
F-SecureTrojan.TR/Kryptik.tvqff
DrWebTrojan.Inject3.51099
TrendMicroTROJ_GEN.R06BC0WHG20
FortinetMSIL/GenKryptik.EQGF!tr
SophosMal/Generic-S
IkarusTrojan.MSIL.Krypt
AviraTR/Kryptik.tvqff
MAXmalware (ai score=83)
ArcabitTrojan.Generic.D10F5C
ZoneAlarmHEUR:Trojan.MSIL.Taskun.gen
MicrosoftHackTool:Win64/Mimikatz.A
AhnLab-V3Trojan/Win32.MSILKrypt.C3337397
McAfeeArtemis!4BDBB28DF8DC
VBA32suspected of Win32.PhishingPE.Heur
ESET-NOD32a variant of MSIL/Kryptik.XIR
TencentMsil.Trojan.Taskun.Pgxf
GDataTrojan.GenericKDZ.69468
AVGWin32:MalwareX-gen [Trj]
Qihoo-360Generic/Trojan.477

Is HackTool:Win64/Mimikatz.A dangerous?

I have actually specified that HackTool:Win64/Mimikatz.A PUA is not as trustworthy as it pretends to be. The “legit and effective” app may suddenly uncover itself as a downloader trojan, spyware, backdoor, or coin miner malware. And you can never foresee what to anticipate even from different variants of Mimikatz unwanted program. That still does not imply that you have to panic – possibly, this unpleasant thing has not succeeded to do bad things to your PC.

The particular damage to your system may be created not only due to the malware injection. A considerable share of suspicious programs, like the Mimikatz app is, is just improperly developed. Possibly, their actions are quite effective than useless if done on certain system setups, however, not on each one. That’s how a basic system optimization application can trigger chaos with continuous BSODs on your system. Any interruptions to the system registry are unsafe, and they are much more dangerous if made with such programs.

How did I get this virus?

It is not easy to trace the sources of malware on your computer. Nowadays, things are mixed up, and distribution tactics used by adware 5 years ago can be utilized by spyware nowadays. However, if we abstract from the exact distribution way and will think about why it has success, the reply will be really basic – low level of cybersecurity knowledge. People press on promotions on odd websites, click the pop-ups they get in their browsers, call the “Microsoft tech support” assuming that the scary banner that states about malware is true. It is necessary to recognize what is legit – to avoid misunderstandings when trying to figure out a virus.

Microsoft tech support scam

The example of Microsoft Tech support scam banner

Nowadays, there are two of the most extensive tactics of malware spreading – lure e-mails and injection into a hacked program. While the first one is not so easy to evade – you must know a lot to recognize a counterfeit – the 2nd one is simple to solve: just do not use cracked applications. Torrent-trackers and various other providers of “totally free” applications (which are, exactly, paid, but with a disabled license checking) are just a giveaway place of malware. And HackTool:Win64/Mimikatz.A is simply one of them.

How to remove the HackTool:Win64/Mimikatz.A from my PC?

HackTool:Win64/Mimikatz.A malware is very difficult to remove manually. It puts its documents in numerous locations throughout the disk, and can get back itself from one of the parts. Moreover, a lot of changes in the registry, networking setups and also Group Policies are really hard to locate and change to the original. It is far better to utilize a special app – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the best for malware removal objectives.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated almost every hour. In addition, it does not have such problems and exploits as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable for eliminating malware of any kind.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of Mimikatz the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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