Categories: Ransom

About “Ransom.CryptoLocker.25 (B)” infection

The Ransom.CryptoLocker.25 (B) is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Ransom.CryptoLocker.25 (B) virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Performs HTTP requests potentially not found in PCAP.
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • CAPE detected the embedded win api malware family
  • Attempts to modify proxy settings
  • Yara detections observed in process dumps, payloads or dropped files

How to determine Ransom.CryptoLocker.25 (B)?


File Info:

name: 6ADD84C2A9647D5CD0F1.mlwpath: /opt/CAPEv2/storage/binaries/f178f10bd26dfa79187b4b9b3144f2b64a7d7fdc99daca2d0a882ab41c4c510dcrc32: 29C3CD77md5: 6add84c2a9647d5cd0f16fd2a0bd421csha1: 2a90af1ccfc7445ad5ca450f8b023fcd0d5782d0sha256: f178f10bd26dfa79187b4b9b3144f2b64a7d7fdc99daca2d0a882ab41c4c510dsha512: c6a4687b09472db6d7f65b7c9614a7d95f8a9fccff215286ca08ff5413e2f18733761a5cab343715767d8d3168aeefaff0863834f6549a6321d11a35e88242e5ssdeep: 768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkTw:P6Q0ElP6G+gJQMOtEvwDpjB8WMlawtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1D32320B51AC43D62DB73A6F6C9FA41B3A5327812B461591D50FAE30CC933B12F8D1A2Dsha3_384: 4b5844114e69feb8eb733385c63d001ed1fbbb0ae828396e5ea08654ec39a3212947dde149bab8f26795934c95efbde0ep_bytes: e8622b0000e86c200000fa1b5000302btimestamp: 2013-10-02 12:59:11

Version Info:

0: [No Data]

Ransom.CryptoLocker.25 (B) also known as:

Bkav W32.AIDetectMalware
AVG Win32:Agent-ASIV [Trj]
Elastic malicious (high confidence)
DrWeb Trojan.DownLoad3.28161
MicroWorld-eScan Gen:Variant.Ransom.CryptoLocker.25
FireEye Generic.mg.6add84c2a9647d5c
Skyhigh BehavesLike.Win32.PWSZbot.pm
McAfee PWSZbot-FIA!6ADD84C2A964
Malwarebytes Generic.Malware.AI.DDS
VIPRE Gen:Variant.Ransom.CryptoLocker.25
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan-Downloader ( 0055c6c71 )
K7GW Trojan ( 005179c61 )
Cybereason malicious.2a9647
BitDefenderTheta Gen:NN.ZexaF.36802.cy2@aOkmkigi
VirIT Trojan.Win32.Zyx.YB
Symantec Trojan.Dropper
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Kryptik.BLTM
Cynet Malicious (score: 100)
APEX Malicious
Avast Win32:Agent-ASIV [Trj]
ClamAV Win.Trojan.Upatre-3337
Kaspersky VHO:Trojan-Spy.Win32.Zbot.gen
BitDefender Gen:Variant.Ransom.CryptoLocker.25
NANO-Antivirus Trojan.Win32.DownLoad3.cjxpzu
SUPERAntiSpyware Trojan.Agent/Gen-Upatre
Tencent Trojan-DL.Win32.Small.kf
Emsisoft Gen:Variant.Ransom.CryptoLocker.25 (B)
F-Secure Trojan.TR/Crypt.ZPACK.Gen
Baidu Win32.Trojan-Downloader.Small.c
Zillya Trojan.Kryptik.Win32.4661701
TrendMicro TROJ_UPATRE.SMAG
Trapmine malicious.high.ml.score
Sophos ML/PE-A
SentinelOne Static AI – Malicious PE
GData Win32.Trojan.PSE.11YZZVL
Jiangmin TrojanSpy.Zbot.eafz
Varist W32/Trojan.AIPM-3539
Avira TR/Crypt.ZPACK.Gen
MAX malware (ai score=85)
Antiy-AVL Trojan/Win32.Waski.a
Kingsoft malware.kb.a.1000
Xcitium TrojWare.Win32.TrojanDownloader.Upatre.MAUA@5rueuc
Arcabit Trojan.Ransom.CryptoLocker.25
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft PWS:Win32/Zbot.FD!MTB
Google Detected
AhnLab-V3 Trojan/Win32.Upatre.C4249769
Acronis suspicious
ALYac Gen:Variant.Ransom.CryptoLocker.25
TACHYON Trojan-Spy/W32.ZBot.45612.D
Cylance unsafe
Panda Trj/Downloader.WKR
TrendMicro-HouseCall TROJ_UPATRE.SMAG
Rising Downloader.Waski!1.A489 (CLASSIC)
Yandex Trojan.GenAsa!Oqb+I/CeYHc
Ikarus Backdoor.Win32.Androm
MaxSecure Trojan.Malware.121218.susgen
Fortinet W32/Mdrop.AAB!tr
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (D)
alibabacloud Trojan[downloader]:Win/Upatre.53a29fc4

How to remove Ransom.CryptoLocker.25 (B)?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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