143:. The ransomware encrypted almost all Windows systems used by Maastricht University, making it impossible for students and staff members to access any university online services during the Christmas break. The offenders set a ransom, which allowed a decryption of the university systems after Maastricht University paid €200,000 in a
173:
In
January 2023, the gang claimed responsibility for breaching over 130 organizations by exploiting a zero-day vulnerability in the GoAnywhere MFT secure file transfer tool. This security flaw, identified as CVE-2023-0669, allows attackers to execute remote code on unpatched instances of GoAnywhere
156:
Accellion, a company providing a legacy File
Transfer Appliance (FTA), experienced a series of data breaches in mid-December 2020. Threat actors took advantage of zero-day vulnerabilities and a web shell known as DEWMODE to breach the systems of up to 100 companies using Accellion's FTA. The stolen
160:
The attacks were attributed to the Clop ransomware gang and the FIN11 threat group, although no ransomware was deployed during these specific incidents. After exfiltrating the data, the attackers threatened to make the stolen information public unless a ransom was paid. Several organizations were
147:
transfer. The lessons resumed with no delays on 6 January, with most online services again available to both students and staff members. In 2020, the public prosecutor service seized the cryptocurrency account in which the ransom was paid. Once the ransom was converted from
Bitcoin to Euros, the
250:, lateral movement, and exfiltration to set the stage for the deployment of their ransomware. Then Clop coerces their victim by sending emails in a bid for negotiations. If their messages are ignored, they threaten to publicize the data on their data leak website “Cl0p^_-Leaks”.
111:
Clop is used to conducting malicious activities during holidays, when the number of staff members present in companies tends to be at its lowest. This is the case of the
Accellion FTA software attack on December 23, 2020, and MOVEit attack during the summer 2023.
241:
campaigns. The emails contain HTML attachments that redirect recipients to a macro-enabled document used to install a loader named Get2. This loader facilitates the download of other tools such as SDBOT, FlawedAmmyy, and
182:
In 2023, Clop employs more complex attacks that make significant impacts and allow them to demand higher ransom payments. Specifically, the Clop gang targeted data theft by exploiting a zero-day vulnerability in
69:
distribution. It has extorted more than $ 500 million in ransom payments, targeting major organizations worldwide. Clop gained notoriety in 2019 and has since conducted high-profile attacks, using large-scale
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Clop has more recently been reported to use TrueBot malware for access to networks. The loader deployed by the "Silence" hacker group, affects over 1,500 systems worldwide in 2023.
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As of July 2023, the Clop ransomware gang is projected to earn an estimated $ 75-100 million from their extortion attacks using the MOVEit
Transfer vulnerability.
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136:(RaaS). Clop ransomware used a verified and digitally signed binary, which made it look like a legitimate executable file that could evade security detection.
108:
process but still threatens to leak data if a ransom is not paid. This technique allows threat actors to achieve the same results and generate larger profits.
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The gang was first spotted by researchers in
February 2019. It evolved as a variant of the "CryptoMix" ransomware family. Clop is an example of
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Clop increasingly uses pure extortion approaches with "encryption-less ransomware". It also employs more complex attacks, such as
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campaigns and sophisticated malware to infiltrate networks and demand ransom, threatening to expose data if demands are not met.
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187:. Their objective is to overcome the overall decline in ransom payments by demanding substantial amounts from their victims.
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302:"Russian-speaking cyber gang claims credit for hack of BBC and British Airways employee data | CNN Business"
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In 2023, Clop uses more and more pure extortion approaches with "encryption-less ransomware" that skips the
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97:(CISA), Clop is "driving global trends in criminal malware distribution". Clop avoids targets in
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603:"Ransomware gang lists first victims of MOVEit mass-hacks, including US banks and universities"
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627:"Clop ransomware gang obtained personal data of 45,000 New York City students in MOVEit hack"
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to have erased "right away" data concerning "the military, children's hospitals, GOV etc".
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355:"Encryption-less ransomware: Warning issued over emerging attack method for threat actors"
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455:"Ransomware attack: Maastricht University pays out $ 220,000 to cybercrooks"
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and its malware can't breach a computer that operates primarily in
Russian.
476:"Dutch university wins big after Bitcoin ransom returned – DW – 07/02/2022"
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527:"Clop ransomware claims it breached 130 orgs using GoAnywhere zero-day"
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382:"Clop ransomware claims responsibility for MOVEit extortion attacks"
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MFT that have their administrative console exposed to the
Internet.
554:"Clop gang to earn over $ 75 million from MOVEit extortion attacks"
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university was able to recover €500,000, double of what was paid.
700:
503:"Global Accellion data breaches linked to Clop ransomware gang"
191:
190:
In 2023, the gang claims credit for the following hack :
677:"Clop ransomware uses TrueBot malware for access to networks"
578:"Estée Lauder beauty giant breached by two ransomware gangs"
329:"Ransomware Gang Haunted US Firms Long Before MOVEit Hack"
652:"EY à son tour piraté ? Des données mises en vente"
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161:identified as victims of these breaches, including
40:
32:
24:
949:Munster Technological University ransomware attack
95:Cybersecurity and Infrastructure Security Agency
839:Waikato District Health Board ransomware attack
900:Anonymous and the Russian invasion of Ukraine
712:
8:
869:National Rifle Association ransomware attack
793:United States federal government data breach
409:"Ransomware Spotlight: Clop - Security News"
19:
246:. Once in the system, the gang proceeds to
1304:
834:Health Service Executive ransomware attack
762:
719:
705:
697:
18:
824:Ivanti Pulse Connect Secure data breach
289:
1005:Ukrainian cyberattacks against Russia
783:European Medicines Agency data breach
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220:New York City Department of Education
206:, First National Bankers Bank (USA),
139:In December 2019, the group attacked
7:
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1000:Change Healthcare ransomware attack
829:Colonial Pipeline ransomware attack
14:
819:Microsoft Exchange Server breach
1025:IRLeaks attack on Iranian banks
157:data included sensitive files.
115:The cybercriminals declared to
63:multilevel extortion techniques
1:
1020:Fur Affinity domain hijacking
925:Shanghai police database leak
915:Costa Rican ransomware attack
16:Criminal hacking organization
849:Kaseya VSA ransomware attack
300:Lyngaas, Sean (2023-06-07).
169:GoAnywhere MFT attack (2023)
974:British Library cyberattack
964:Insomniac Games data breach
152:Accellion FTA attack (2020)
89:Clop is a Russian-speaking
61:organization known for its
1408:
969:Polish railway cyberattack
854:Transnet ransomware attack
844:JBS S.A. ransomware attack
601:Page, Carly (2023-06-15).
433:"Cyber attack - a summary"
178:MOVEit exploitation (2023)
93:gang. According to the US
778:Twitter account hijacking
732:
353:Ross Kelly (2023-06-29).
910:DDoS attacks on Romania
658:(in French). 2023-07-07
435:. Maastricht University
278:2023 MOVEit data breach
134:ransomware as a service
99:former Soviet countries
200:Estee Lauder companies
1249:Account pre-hijacking
995:Kadokawa and Niconico
895:Red Cross data breach
141:Maastricht University
920:LastPass vault theft
890:Ukraine cyberattacks
803:Vastaamo data breach
727:Hacking in the 2020s
656:www.journaldunet.com
53:(sometimes written “
1015:Trump campaign hack
931:Grand Theft Auto VI
798:EasyJet data breach
21:
1117:IT Army of Ukraine
959:MOVEit data breach
788:Nintendo data leak
749:2030s →
413:www.trendmicro.com
273:Royal (cyber gang)
263:Conti (ransomware)
208:Putnam Investments
1369:
1368:
1365:
1364:
1190:maia arson crimew
1185:Graham Ivan Clark
1050:associated events
1033:
1032:
990:XZ Utils backdoor
954:Evide data breach
874:Banco de Oro hack
753:
752:
453:Bannister, Adam.
224:Ernst & Young
212:Landal Greenparks
117:Bleeping Computer
48:
47:
1399:
1305:
1010:2024 WazirX hack
859:Epik data breach
763:
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681:BleepingComputer
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457:. The Daily Swig
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1206:vulnerabilities
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759:Major incidents
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196:British Airways
185:MOVEit Transfer
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1102:GnosticPlayers
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864:FBI email hack
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633:. 25 June 2023
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248:reconnaissance
237:Clop uses big
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128:First exploits
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1167:Wizard Spider
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738:←
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244:Cobalt Strike
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1162:ShinyHunters
1071:
1062:Berserk Bear
933:content leak
930:
684:. Retrieved
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660:. Retrieved
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635:. Retrieved
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621:
610:. Retrieved
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335:. 2023-06-17
332:
309:. Retrieved
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25:Abbreviation
1237:FORCEDENTRY
1177:Individuals
1097:Ghostwriter
905:Viasat hack
85:Description
65:and global
1392:Cybercrime
1387:Ransomware
1376:Categories
1225:Thunderspy
1142:OceanLotus
1132:LightBasin
1082:DarkMatter
686:2023-07-22
662:2023-07-28
637:2023-07-24
612:2023-07-24
607:TechCrunch
587:2023-07-22
563:2023-07-22
536:2023-07-24
512:2023-07-24
485:2023-04-21
461:2020-05-11
439:2020-05-11
418:2023-07-05
391:2023-07-24
364:2023-07-18
339:2023-07-05
311:2023-07-05
284:References
218:(UK), the
204:1st Source
106:encryption
91:ransomware
1357:Pipedream
1291:Sinkclose
1243:Log4Shell
1211:disclosed
1209:publicly
1107:Guacamaya
1077:Cozy Bear
1045:Anonymous
773:BlueLeaks
33:Formation
1336:Predator
1320:Drovorub
1279:Terrapin
1267:LogoFAIL
1261:Downfall
1255:Retbleed
1219:SMBGhost
1195:Kirtaner
1152:Sandworm
1127:Lapsus$
1087:DarkSide
1067:BlackCat
745:Timeline
631:Engadget
257:See also
239:phishing
79:zero-day
72:phishing
57:”) is a
1315:Adrozek
1301:Malware
1285:GoFetch
1137:LockBit
1122:Killnet
1112:Hafnium
268:LockBit
233:Methods
210:(USA),
145:Bitcoin
123:History
67:malware
44:Hacking
1293:(2024)
1287:(2024)
1281:(2023)
1275:(2023)
1273:Reptar
1269:(2023)
1263:(2023)
1257:(2022)
1251:(2022)
1245:(2021)
1239:(2021)
1233:(2021)
1227:(2020)
1221:(2020)
1204:Major
1092:Dridex
1038:Groups
480:dw.com
222:, and
163:Kroger
1147:REvil
740:2010s
359:ITPro
216:Shell
1345:2022
1329:2021
1308:2020
1072:Clop
983:2024
942:2023
883:2022
812:2021
766:2020
194:and
55:Cl0p
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