Win32/Kryptik. Fzyc

Win32/Kryptik. Fzyc

What is Win32/Kryptik.FZYC infection?

In this short article you will certainly locate regarding the meaning of Win32/Kryptik.FZYC and its unfavorable influence on your computer system. Such ransomware are a kind of malware that is elaborated by on the internet scams to demand paying the ransom by a victim.

In the majority of the cases, Win32/Kryptik.FZYC infection will certainly advise its sufferers to initiate funds transfer for the purpose of counteracting the modifications that the Trojan infection has introduced to the target’s device.

Win32/Kryptik.FZYC Summary

These modifications can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Gaelic (Scottish);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a copy of itself;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the victim’s hard disk — so the target can no more make use of the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32/Kryptik.FZYC

One of the most common channels where Win32/Kryptik.FZYC Trojans are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of individual ending up on a resource that hosts a harmful software program;

As soon as the Trojan is successfully infused, it will certainly either cipher the information on the sufferer’s PC or prevent the device from operating in an appropriate manner – while likewise positioning a ransom money note that points out the need for the victims to effect the payment for the function of decrypting the papers or bring back the data system back to the first problem. In a lot of instances, the ransom money note will certainly come up when the customer reboots the COMPUTER after the system has currently been damaged.

Win32/Kryptik.FZYC distribution networks.

In various corners of the globe, Win32/Kryptik.FZYC expands by leaps and bounds. Nonetheless, the ransom money notes and tricks of obtaining the ransom money quantity might differ depending on particular regional (regional) setups. The ransom notes and methods of extorting the ransom money amount might vary depending on particular regional (regional) settings.

As an example:

    Faulty informs about unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having identified some unlicensed applications enabled on the target’s tool. The sharp then requires the user to pay the ransom money.

    Faulty declarations concerning prohibited content.

    In countries where software program piracy is much less preferred, this approach is not as effective for the cyber scams. Conversely, the Win32/Kryptik.FZYC popup alert might incorrectly assert to be deriving from a law enforcement institution and also will report having located child pornography or other illegal data on the tool.

    Win32/Kryptik.FZYC popup alert might incorrectly declare to be acquiring from a legislation enforcement establishment as well as will certainly report having located youngster pornography or other illegal data on the tool. The alert will similarly include a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 6E85F722md5: ad91def8e05764652f7c49fc656ed563name: AD91DEF8E05764652F7C49FC656ED563.mlwsha1: 578b4b3957e9b0975a0c062becfb8196137dbf0esha256: b5a3b526564368a353d7cb4b52e729557cb809dfde26b93cafad204c65268bdesha512: 90ead8056b7ed985eb7715e15b9b379ebeeb8752a28ec77e1046285e4f79210be5c98ffe94d20cc30be7675de4beab8a1aec16618fe482591c40a4c83f5b1a3dssdeep: 6144:61JcZp8UHC2+QQWu3l/pRk/RX8bJw1zfZtMtA0vh8v03rLqXBeC0tqle:A+ZmQC2YnRk/WbJ+gDvhbuWtMetype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FZYC also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusAdware ( 00539ed31 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Panda.12795
CynetMalicious ()
CAT-QuickHealTrojan.Chapak.ZZ5
ALYacTrojan.BRMon.Gen.1
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaTrojan:Win32/Kryptik.dff51035
K7GWTrojan ( 0051f3d01 )
Cybereasonmalicious.8e0576
CyrenW32/S-00766a36!Eldorado
ESET-NOD32a variant of Win32/Kryptik.FZYC
APEXMalicious
AvastFileRepMalware
ClamAVWin.Trojan.Emotet-6411372-0
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.BRMon.Gen.1
NANO-AntivirusTrojan.Win32.Panda.evqmnb
SUPERAntiSpyware
MicroWorld-eScanTrojan.BRMon.Gen.1
TencentMalware.Win32.Gencirc.11494bdd
Ad-AwareTrojan.BRMon.Gen.1
SophosMal/Generic-R + Mal/Ransom-FN
ComodoTrojWare.Win32.Crypt.AV@7f2dcy
BitDefenderThetaGen:NN.ZexaF.34628.xuW@aCA1U5pO
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPGANDCRAB.SMG2
McAfee-GW-EditionBehavesLike.Win32.Generic.fc
FireEyeGeneric.mg.ad91def8e0576465
EmsisoftTrojan.BRMon.Gen.1 (B)
JiangminTrojan-Ransom.Crypmod.a
AviraHEUR/AGEN.1106533
MicrosoftTrojanSpy:Win32/Ursnif
AegisLabTrojan.Win32.Generic.4!c
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.BRMon.Gen.1
AhnLab-V3Win-Trojan/MalPe34.Suspicious.X2029
Acronissuspicious
McAfeeTrojan-FOSO!AD91DEF8E057
MAXmalware (ai score=95)
VBA32BScope.Trojan.Scarsi
MalwarebytesRansom.GlobeImposter
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_HPGANDCRAB.SMG2
Rising (CLASSIC)
YandexTrojan.GenAsa!+OnE97yr71k
SentinelOneStatic AI – Malicious PE
MaxSecureRansomeware.CRAB.gen
FortinetW32/Kryptik.FZYC!tr
AVGFileRepMalware
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HwoCEpsA
Marcus Vance
Author

Marcus Vance

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.