Win32:Dropper-KLB [Drp]

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32:Dropper-KLB [Drp] detection usually means that your system is in big danger. This malware can correctly be identified as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Removing it requires some specific steps that must be taken as soon as possible.
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Win32:Dropper-KLB [Drp] detection is a malware detection you can spectate in your computer. It often appears after the preliminary procedures on your computer – opening the dubious email, clicking the banner in the Internet or installing the program from suspicious sources. From the moment it appears, you have a short time to take action until it starts its harmful activity. And be sure – it is better not to await these harmful effects.

What is Win32:Dropper-KLB [Drp] virus?

Win32:Dropper-KLB [Drp] is ransomware-type malware. It looks for the files on your disk, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your files inaccessible, this malware additionally does a lot of damage to your system. It modifies the networking settings in order to stop you from reading the elimination articles or downloading the antivirus. In rare cases, Win32:Dropper-KLB [Drp] can also prevent the setup of anti-malware programs.

Win32:Dropper-KLB [Drp] Summary

Summarizingly, Win32:Dropper-KLB [Drp] virus actions in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Possible date expiration check, exits too soon after checking local time;
  • Dynamic (imported) function loading detected;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Installs itself for autorun at Windows startup;
  • Anomalous binary characteristics;
  • Encrypting the files located on the target’s disk drives — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of anti-malware programs

Ransomware has been a horror story for the last 4 years. It is challenging to imagine a more dangerous malware for both individual users and organizations. The algorithms used in Win32:Dropper-KLB [Drp] (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy currently exists, and possibly will exist. But that malware does not do all these terrible things instantly – it can take up to a few hours to cipher all of your files. Hence, seeing the Win32:Dropper-KLB [Drp] detection is a clear signal that you must begin the clearing process.

Where did I get the Win32:Dropper-KLB [Drp]?

Standard methods of Win32:Dropper-KLB [Drp] spreading are typical for all other ransomware variants. Those are one-day landing web pages where users are offered to download the free program, so-called bait e-mails and hacktools. Bait emails are a relatively new tactic in malware spreading – you receive the email that mimics some normal notifications about shipments or bank service conditions updates. Within the e-mail, there is an infected MS Office file, or a link which leads to the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks fairly uncomplicated, but still needs tons of focus. Malware can hide in various spots, and it is better to stop it even before it gets into your PC than to rely on an anti-malware program. Essential cybersecurity awareness is just an important thing in the modern-day world, even if your relationship with a PC remains on YouTube videos. That can save you a great deal of time and money which you would certainly spend while seeking a solution.

Win32:Dropper-KLB [Drp] malware technical details

File Info:

name: F53586D5461258E62D67.mlw
path: /opt/CAPEv2/storage/binaries/9847f3065a7e96d6192e7f2adccedd75cf881b60cd00d00e8f12a32055e272ef
crc32: 3516E59F
md5: f53586d5461258e62d676b320435fce0
sha1: 93a0024bdfb0fffcd31fa93458a775b67700cf14
sha256: 9847f3065a7e96d6192e7f2adccedd75cf881b60cd00d00e8f12a32055e272ef
sha512: 9039a4df286e5723c3f07cd1fed8fbcffdfe222f6f3b7ed75953aa81b7462462d436f37773cde1761057ebefb1e492c52b22ea458cf71ded8146c25e7a965833
ssdeep: 1536:M6j8V7OFvGud/x6US+q+akDUoWXh06OxedalMccihDYYXMiN:hIV7kvTdJxSP+BJWxXOxZGccihDYYMiN
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1A4737D2E746130E6C99FF3753461EA1942C6861547BA8E272F269FD849372C702783DF
sha3_384: e819c84b48b7d8c2874d2632c07fb379ce3863fdfb8284679b25dea99c07b408716dfde75ad5063b515094ce4d6422fb
ep_bytes: 558bec81ecf8030000c78580fdffff00
timestamp: 2012-03-27 14:00:48

Version Info:

0: [No Data]

Win32:Dropper-KLB [Drp] also known as:

BkavW32.AIDetect.malware1
LionicHacktool.Win32.Krap.lKMc
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
FireEyeGeneric.mg.f53586d5461258e6
CAT-QuickHealTrojanPWS.Zbot.Gen
McAfeePWS-Zbot.gen.bew
CylanceUnsafe
ZillyaTrojan.Foreign.Win32.485
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0040f02a1 )
AlibabaRansom:Win32/Genasom.ca5c7656
K7GWTrojan ( 0040f02a1 )
CrowdStrikewin/malicious_confidence_100% (W)
VirITTrojan.Win32.Generic.BGWX
CyrenW32/Zbot.FL.gen!Eldorado
SymantecPacked.Generic.459
ESET-NOD32Win32/LockScreen.AIG
APEXMalicious
Paloaltogeneric.ml
ClamAVWin.Trojan.Foreign-1
KasperskyPacked.Win32.Krap.iu
BitDefenderGen:Variant.Fugrafa.30071
NANO-AntivirusTrojan.Win32.Krap.fkwcip
MicroWorld-eScanGen:Variant.Fugrafa.30071
AvastWin32:Dropper-KLB [Drp]
TencentMalware.Win32.Gencirc.114d6b77
Ad-AwareGen:Variant.Fugrafa.30071
EmsisoftGen:Variant.Fugrafa.30071 (B)
ComodoMalware@#v9znl4sfz625
DrWebTrojan.Winlock.5857
VIPRETrojan.Win32.Reveton.ca (v)
TrendMicroMal_Ransom-1
McAfee-GW-EditionBehavesLike.Win32.ZBot.lc
SophosMal/Generic-R + Troj/Bdoor-BDY
SentinelOneStatic AI – Malicious PE
GDataGen:Variant.Fugrafa.30071
JiangminTrojan/Foreign.rf
WebrootW32.Rogue.Gen
AviraTR/Ransom.EB.54
MAXmalware (ai score=100)
Antiy-AVLTrojan/Generic.ASMalwS.D9FE5
ViRobotTrojan.Win32.A.Foreign.80032
MicrosoftRansom:Win32/Genasom.JU
AhnLab-V3Trojan/Win32.Foreign.R24533
Acronissuspicious
BitDefenderThetaAI:Packer.B1A7E4A21E
ALYacGen:Variant.Fugrafa.30071
VBA32Hoax.Foreign
TrendMicro-HouseCallMal_Ransom-1
RisingRansom.Genasom!8.293 (CLOUD)
YandexTrojan.GenAsa!fhBH5lDXAz8
IkarusTrojan-Ransom.Foreign
MaxSecureTrojan.Packed.Krap.iu
FortinetW32/ZBOT.HL!tr
AVGWin32:Dropper-KLB [Drp]
Cybereasonmalicious.546125
PandaBck/Qbot.AO

How to remove Win32:Dropper-KLB [Drp]?

Win32:Dropper-KLB [Drp] malware is extremely hard to remove manually. It stores its files in multiple places throughout the disk, and can restore itself from one of the elements. Furthermore, a lot of changes in the windows registry, networking configurations and also Group Policies are fairly hard to discover and revert to the original. It is far better to use a specific app – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the best for virus removal purposes.

Why GridinSoft Anti-Malware? It is really light-weight and has its detection databases updated practically every hour. Moreover, it does not have such problems and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable for getting rid of 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 [SHORT_NAME] 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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